FOR WHAT ACEQUINOCYL LCMSMS USE PDF



For What Acequinocyl Lcmsms Use Pdf

(PDF) Determination of Acequinocyl and Hydroxyacequinocyl. TO MS and Residue Analysis 2 This “collect first – think later” idea is further improved by Waters’ patented MS E technique, which collects not only the accurate mass spectra of all of the molecular ions, but also the fragment ions of the sample during the, A method for determining residues of the new reduced-risk pesticide acequinocyl and its deacetylated derivative hydroxyacequinocyl on fruits and vegetables (grapes, lemons, pears, and tomatoes) by HPLC is described. The pesticides were extracted from the fruits and vegetables with hexane and ethyl.

Agilent 6430 Triple Quadrupole LC/MS System HPST

Non-targeted Screening and Accurate Mass. 1/3/2017 · Although a limited number of pesticides might be recommended for use in any specific crop, there are possibilities of transmission of non-recommended pesticide residues from adjoin- ing farms where other crops are cultivated with a different set of recommended pesticides being sprayed on them., NT. All results in this report apply to samples collected in accordance with CA Code of Regulations Title 16 Article 3. This report is generated by Sonoma Lab Works, LLC and contains confidential and/or legally privileged information from Sonoma Lab Works, LLC..

associated with materials submitted for analysis, and reserves the right to dispose. The client listed in this report is singularly responsible for all use, interpretation, and reliance of results contained within this report. Uncertainty measurements available upon request. Primary Sample: Inhalable Report of Analysis Date 5.2 g Page 1 of 2 2078 Development of a Multiresidue Method for Pesticide Analysis in Drinking Water J. Braz. Chem. Soc. analyte due the competition for retention. Many sorbents (e.g., C 18) are limited in terms of selectivity, being a difficult task due to the different pesticides physicochemical properties. …

2. 2. Liquid chromatography-tandem mass spectrometry (LC/MS/MS) has become the method of choice for pesticide analysis due to its high selectivity and sensitivity as well as its suitability for a wide PDF A sensitive method for the quantification of acequinocyl and hydroxyacequinocyl in foodstuff (beef, chicken muscle and liver, fish, peach, cucumber, Chinese cabbage and broad bean) was

with the use of different stationary chemistries, its selectivity can be altered dramatically. These render UPC2 a potential powerful tool for the separation of 15 Acequinocyl C24H32O4 385 384.2301 6.2 LC 16 Pyridaben C19H25ClN2OS 365 364.1376 6.37 GC 2078 Development of a Multiresidue Method for Pesticide Analysis in Drinking Water J. Braz. Chem. Soc. analyte due the competition for retention. Many sorbents (e.g., C 18) are limited in terms of selectivity, being a difficult task due to the different pesticides physicochemical properties. …

6/6/2018 · What is perhaps more interesting is the large number of compounds that were actually detected in these samples. Clearly, this indicates that many compounds that are not allowed for use on cannabis are still in widespread use. These data also stress the need for states to develop effective testing procedures for the cannabis industry. A Rapid iMethod Application for Screening Pesticides V.2.4 water, and other consumer products compatible to the EU MRL list Overview. With more than 800 pesticides currently in use there is growing concern by government agencies about the effect of pesticide …

APPLICATINS Analysis of 62 Pesticides in Cannabis by LC-MS/MS Scott Krepich and Jeff Layne state with legalization laws for Cannabis use for Medicinal and/ or Recreational purposes has established policies for pesticide Acequinocyl 7.21 PDF A sensitive method for the quantification of acequinocyl and hydroxyacequinocyl in foodstuff (beef, chicken muscle and liver, fish, peach, cucumber, Chinese cabbage and broad bean) was

multiresidue method for the determination of 180 pesticides in foods using GC-FPD and GC-MS (Okihashi et al. 2005) based on the QuEChERS method (Anastassiades et al. 2003). The positive aspects of our method against the ori-ginal QuEChERS were the powerful extraction with the ho-mogenizer and the efficient cleanup with the double-layered SPE. Guidelines on the Use of MS for Identification, confirmation & Quantitative Determination of Residues, Codex CAC/GL 56-2005 Commission Decision, 2002/657/EC, implementing Council Directive

The Role of the Liquid Chromatography-Mass Spectrometry in

for what acequinocyl lcmsms use pdf

LC-QTOF-MS/MS method for the simultaneous full scan and MS. use of methanol instead of acetonitrile is encouraged. In the study reported by Jansson et al. (24) all the pesticides can not be detected at a concentration equivalent to 0.01 mg/kg when using acetonitrile instead as the modifier. The pH of the mobile phase determines the ionization state of the analytes when working with acids, bases or, A method for determining residues of the new reduced-risk pesticide acequinocyl and its deacetylated derivative hydroxyacequinocyl on fruits and vegetables (grapes, lemons, pears, and tomatoes) by HPLC is described. The pesticides were extracted from the fruits and vegetables with hexane and ethyl.

Studies on extraction and HPLC Analysis of Azadirachtin

for what acequinocyl lcmsms use pdf

Pesticide Spectral Library Version 1.0 for LibraryView. APPLICATINS Analysis of 62 Pesticides in Cannabis by LC-MS/MS Scott Krepich and Jeff Layne state with legalization laws for Cannabis use for Medicinal and/ or Recreational purposes has established policies for pesticide Acequinocyl 7.21 verified for use with Shimadzu LCMS-8050 and 8060 systems. The Library contains information that can be used to accelerate method development in LC/MS/MS pesticide analysis including; An average of 8 MRM transitions for each reference standard (with optimized collision energies) are registered in the database including.

for what acequinocyl lcmsms use pdf


associated with materials submitted for analysis, and reserves the right to dispose. The client listed in this report is singularly responsible for all use, interpretation, and reliance of results contained within this report. Uncertainty measurements available upon request. Primary Sample: Inhalable Report of Analysis Date 5.2 g Page 1 of 2 with the use of different stationary chemistries, its selectivity can be altered dramatically. These render UPC2 a potential powerful tool for the separation of 15 Acequinocyl C24H32O4 385 384.2301 6.2 LC 16 Pyridaben C19H25ClN2OS 365 364.1376 6.37 GC

LATEST FROM WA WSDA Requesting pyrolysis studies, or requests for data waivers, were reviewed by the EPA in order to register approx. 31 tolerance exempt active ingredients for use on tobacco (refer to attached spreadsheet).. 61 tolerance exempt ingredients . that are currently allowed for use on marijuana in Washington. For the approx. 30 tolerance exempt active ingredients that are not 6700 J. Agric. Food Chem. 2004, 52, 6700−6702 Determination of Acequinocyl and Hydroxyacequinocyl on Fruits and Vegetables by HPLC-DAD PIERLUIGI CABONI, GIORGIA SARAIS, MARINELLA MELIS, MARCO CABRAS, AND PAOLO CABRAS* Dipartimento di Tossicologia, Universita` di Cagliari, via Ospedale 72, 09124 Cagliari, Italy A method for determining residues of the new reduced-risk pesticide acequinocyl

Optimizing Sample Preparation for LC/MS/MS of Pesticide Residues in Herbal Teas Author Derick Lucas Agilent Technologies, Inc Application Note Food Testing & Agriculture Introduction Herbal teas are deeply woven into a variety of cultures and generally associated with the promotion of good health by lowering the risk of diseases such as cancer, For example, acequinocyl is an insecticide and can be ionized easily as a protonated molecular ion in a standard, but the MRM transitions, based on protonated molecular ion in the cannabis matrix, showed a poor LOQ of 0.5–1 µg/g, about 5–10 times higher than its action limit for the state of California.

with the use of different stationary chemistries, its selectivity can be altered dramatically. These render UPC2 a potential powerful tool for the separation of 15 Acequinocyl C24H32O4 385 384.2301 6.2 LC 16 Pyridaben C19H25ClN2OS 365 364.1376 6.37 GC A method for determining residues of the new reduced-risk pesticide acequinocyl and its deacetylated derivative hydroxyacequinocyl on fruits and vegetables (grapes, lemons, pears, and tomatoes) by HPLC is described. The pesticides were extracted from the fruits and vegetables with hexane and ethyl

Development of an Analytical Method for Determination of Antiparasitics Residues in Milk Using QuEChERS and Analysis by LC-MS/MS Authors Regina Furlani, Fernanda Gomes, Silvia Development of an Analytical Method for Determination of Antiparasitics Residues in Milk Using QuEChERS and Analysis by LC-MS/MS Authors Regina Furlani, Fernanda Gomes, Silvia

for use during method development and recovery experiments. Figure 1. Cannabis sample before (left) and after (right) homogenization with dry ice. QuEChERS Procedure: Sample Extraction: 1. Weigh 1 g of cannabis sample into a 50 mL polypropylene centrifuge tube. 2. Add internal standard(s). 3. Use clean water for depulping. Neem Research and Technology Development Centre (NRTDC) developed a mechnical depulper to handle large quantity of neem fruits. After depulping and cleaning, dry the neem seeds in the shade in a thin layer. Keep the neem seeds in a cool and dry place.

these compounds and their significant use on food commodities. The sensitivity of the QQQ easily meets the levels required by the regulations on pesticides in food. Experimental Sample preparation Pesticide analytical standards were purchased from Dr. Ehrenstorfer (Ausburg, Germany). Individual pesticide stock solutions (around 2005). The rates of disappearance of total acequinocyl on perilla leaf for Acequinocyl (2-acetoxy-3-n-dodecyl-l, 4-naphthoquinone, Fig. single and double doses were described as first-order kinetics with 1) is an acaricidal compound containing a quinone moiety in its half-lives of 2.8 and 3.1-days, respectively.

LC-QTOF-MS/MS method for the simultaneous full scan and MS

for what acequinocyl lcmsms use pdf

APPLICATINS az621941.vo.msecnd.net. LATEST FROM WA WSDA Requesting pyrolysis studies, or requests for data waivers, were reviewed by the EPA in order to register approx. 31 tolerance exempt active ingredients for use on tobacco (refer to attached spreadsheet).. 61 tolerance exempt ingredients . that are currently allowed for use on marijuana in Washington. For the approx. 30 tolerance exempt active ingredients that are not, Development of an Analytical Method for Determination of Antiparasitics Residues in Milk Using QuEChERS and Analysis by LC-MS/MS Authors Regina Furlani, Fernanda Gomes, Silvia.

Multiresidue Analysis of 100 Pesticides in Food Samples by

Liquid Chromatography/ Mass Spectrometry. Use clean water for depulping. Neem Research and Technology Development Centre (NRTDC) developed a mechnical depulper to handle large quantity of neem fruits. After depulping and cleaning, dry the neem seeds in the shade in a thin layer. Keep the neem seeds in a cool and dry place., Optimizing Sample Preparation for LC/MS/MS of Pesticide Residues in Herbal Teas Author Derick Lucas Agilent Technologies, Inc Application Note Food Testing & Agriculture Introduction Herbal teas are deeply woven into a variety of cultures and generally associated with the promotion of good health by lowering the risk of diseases such as cancer,.

1/25/2011 · Methods. Efficacy of chlorfenapyr against An. culicifacies and An. stephensi was assessed using adult bioassay tests.In the laboratory, determination of diagnostic dose, assessment of residual activity on different substrates, cross-resistance pattern with different insecticides and potentiation studies using piperonyl butoxide were undertaken by following standard procedures. 2005). The rates of disappearance of total acequinocyl on perilla leaf for Acequinocyl (2-acetoxy-3-n-dodecyl-l, 4-naphthoquinone, Fig. single and double doses were described as first-order kinetics with 1) is an acaricidal compound containing a quinone moiety in its half-lives of 2.8 and 3.1-days, respectively.

Development of an Analytical Method for Determination of Antiparasitics Residues in Milk Using QuEChERS and Analysis by LC-MS/MS Authors Regina Furlani, Fernanda Gomes, Silvia 10/31/2012 · Persistence and degradation behaviors of acequinocyl and hydroxyacequinocyl were determined in perilla leaf grown under greenhouse conditions. Acequinocyl (15%, SC) was sprayed on perilla leaf at the recommended dose rate of 37.5 g/250 L …

A method for determining residues of the new reduced-risk pesticide acequinocyl and its deacetylated derivative hydroxyacequinocyl on fruits and vegetables (grapes, lemons, pears, and tomatoes) by HPLC is described. The pesticides were extracted from the fruits and vegetables with hexane and ethyl associated with materials submitted for analysis, and reserves the right to dispose. The client listed in this report is singularly responsible for all use, interpretation, and reliance of results contained within this report. Uncertainty measurements available upon request. Primary Sample: Inhalable Report of Analysis Date 5.2 g Page 1 of 2

for use during method development and recovery experiments. Figure 1. Cannabis sample before (left) and after (right) homogenization with dry ice. QuEChERS Procedure: Sample Extraction: 1. Weigh 1 g of cannabis sample into a 50 mL polypropylene centrifuge tube. 2. Add internal standard(s). 3. associated with materials submitted for analysis, and reserves the right to dispose. The client listed in this report is singularly responsible for all use, interpretation, and reliance of results contained within this report. Uncertainty measurements available upon request. Primary Sample: Inhalable Report of Analysis Date 5.2 g Page 1 of 2

Pesticide Spectral Library v1.0 for LibraryView™ Software An overview of the licensed mass spectral library for pesticidescompatible with LibraryView™ Software LibraryView™ Software is a fast way to analyze large batches of MS/MS data for accurate and efficient MS/MS library searching, data mining, and compound database management. We’ve Use clean water for depulping. Neem Research and Technology Development Centre (NRTDC) developed a mechnical depulper to handle large quantity of neem fruits. After depulping and cleaning, dry the neem seeds in the shade in a thin layer. Keep the neem seeds in a cool and dry place.

TO MS and Residue Analysis 2 This “collect first – think later” idea is further improved by Waters’ patented MS E technique, which collects not only the accurate mass spectra of all of the molecular ions, but also the fragment ions of the sample during the For example, acequinocyl is an insecticide and can be ionized easily as a protonated molecular ion in a standard, but the MRM transitions, based on protonated molecular ion in the cannabis matrix, showed a poor LOQ of 0.5–1 µg/g, about 5–10 times higher than its action limit for the state of California.

Optimizing Sample Preparation for LC/MS/MS of Pesticide Residues in Herbal Teas Author Derick Lucas Agilent Technologies, Inc Application Note Food Testing & Agriculture Introduction Herbal teas are deeply woven into a variety of cultures and generally associated with the promotion of good health by lowering the risk of diseases such as cancer, Chemical Analysis of Pesticides Using GC/MS, GC/MS/MS, and LC/MS/MS Renata Raina University of Regina, Department of Chemistry & Biochemistry and Trace Analysis Facility Canada 1. Introduction There are well over 500 registered pesticides wo rldwide for use in agri cultural regions and

A method for determining residues of the new reduced-risk pesticide acequinocyl and its deacetylated derivative hydroxyacequinocyl on fruits and vegetables (grapes, lemons, pears, and tomatoes) by for use during method development and recovery experiments. Figure 1. Cannabis sample before (left) and after (right) homogenization with dry ice. QuEChERS Procedure: Sample Extraction: 1. Weigh 1 g of cannabis sample into a 50 mL polypropylene centrifuge tube. 2. Add internal standard(s). 3.

A method for determining residues of the new reduced-risk pesticide acequinocyl and its deacetylated derivative hydroxyacequinocyl on fruits and vegetables (grapes, lemons, pears, and tomatoes) by Development of an Analytical Method for Determination of Antiparasitics Residues in Milk Using QuEChERS and Analysis by LC-MS/MS Authors Regina Furlani, Fernanda Gomes, Silvia

Development of an Analytical Method for Determination of Antiparasitics Residues in Milk Using QuEChERS and Analysis by LC-MS/MS Authors Regina Furlani, Fernanda Gomes, Silvia Chlorfenapyr is used as an insecticide-miticide on a number of fruits, vegetables, grains, herbs, spices and tea. At the Forty-third session of CCPR it was scheduled for evaluation by the 2012 JMPR as a new compound. The manufacturer provided information on identity, metabolism, storage stability, analytical

these compounds and their significant use on food commodities. The sensitivity of the QQQ easily meets the levels required by the regulations on pesticides in food. Experimental Sample preparation Pesticide analytical standards were purchased from Dr. Ehrenstorfer (Ausburg, Germany). Individual pesticide stock solutions (around state of California’s action limits; or, use time-consuming sample preparation methods (e.g. QuEChERS with dSPE) with poor recoveries for some of the pesticides, which require use of both LC-MS/MS and GC-MS/MS based instruments for analysis of all the pesticides. This increases cost, complexity, and turnaround time of analysis substantially.

Use clean water for depulping. Neem Research and Technology Development Centre (NRTDC) developed a mechnical depulper to handle large quantity of neem fruits. After depulping and cleaning, dry the neem seeds in the shade in a thin layer. Keep the neem seeds in a cool and dry place. 2078 Development of a Multiresidue Method for Pesticide Analysis in Drinking Water J. Braz. Chem. Soc. analyte due the competition for retention. Many sorbents (e.g., C 18) are limited in terms of selectivity, being a difficult task due to the different pesticides physicochemical properties. …

Application for Screening Pesticides

for what acequinocyl lcmsms use pdf

Analysis of Pesticide Residues and Mycotoxins in using. Use clean water for depulping. Neem Research and Technology Development Centre (NRTDC) developed a mechnical depulper to handle large quantity of neem fruits. After depulping and cleaning, dry the neem seeds in the shade in a thin layer. Keep the neem seeds in a cool and dry place., Development of an Analytical Method for Determination of Antiparasitics Residues in Milk Using QuEChERS and Analysis by LC-MS/MS Authors Regina Furlani, Fernanda Gomes, Silvia.

APPLICATINS az621941.vo.msecnd.net. for use during method development and recovery experiments. Figure 1. Cannabis sample before (left) and after (right) homogenization with dry ice. QuEChERS Procedure: Sample Extraction: 1. Weigh 1 g of cannabis sample into a 50 mL polypropylene centrifuge tube. 2. Add internal standard(s). 3., Chlorfenapyr is used as an insecticide-miticide on a number of fruits, vegetables, grains, herbs, spices and tea. At the Forty-third session of CCPR it was scheduled for evaluation by the 2012 JMPR as a new compound. The manufacturer provided information on identity, metabolism, storage stability, analytical.

Determination of Acequinocyl and Hydroxyacequinocyl on

for what acequinocyl lcmsms use pdf

CHLORFENAPYR (254). The client listed in this report is singularly responsible for all use, interpretation, and reliance of results contained within this report. [SLW-MA] Method: LCMSMS ND = None Detected, NT = Not Tested, N/A = Not Applicable,

for what acequinocyl lcmsms use pdf


2. 2. Liquid chromatography-tandem mass spectrometry (LC/MS/MS) has become the method of choice for pesticide analysis due to its high selectivity and sensitivity as well as its suitability for a wide Development of an Analytical Method for Determination of Antiparasitics Residues in Milk Using QuEChERS and Analysis by LC-MS/MS Authors Regina Furlani, Fernanda Gomes, Silvia

Introduction to MS Quantitation and Modes of LC/MS Monitoring . Introduction: This tutorial applies to the quantitation of small molecules using mass spectrometry in pharmacokinetic analysis. In addition these very same principles can be applied to the quantitation of peptides and proteins in … Page 1 1. Aim and Scope This report describes the evaluation of LC-QTOF-MS for the simultaneous full scan and MS/MS analysis for the detection and identification of 125

Description. The NIST 17 mass spectral library, the successor to the NIST 14, is a fully evaluated collection of electron ionization (EI) and MS/MS mass spectra, with chemical and GC data, plus search software to identify your own unknown spectra. It is a product of a more than three decade, comprehensive evaluation and expansion of the world's most widely used mass spectral reference … Pesticide LC/MS/MS Library Version 1.0 for Cliquid® Software . iMethods™ Test Pesticides Library Version 1.0 for Cliquid ® Software. The following description outlines the 603 pesticide MRM catalogue and 544 pesticide spectral library that is available for use with AB SCIEX API or QTRAP ® LC/MS/MS systems and Cliquid ® Software.

2078 Development of a Multiresidue Method for Pesticide Analysis in Drinking Water J. Braz. Chem. Soc. analyte due the competition for retention. Many sorbents (e.g., C 18) are limited in terms of selectivity, being a difficult task due to the different pesticides physicochemical properties. … 1/25/2011 · Methods. Efficacy of chlorfenapyr against An. culicifacies and An. stephensi was assessed using adult bioassay tests.In the laboratory, determination of diagnostic dose, assessment of residual activity on different substrates, cross-resistance pattern with different insecticides and potentiation studies using piperonyl butoxide were undertaken by following standard procedures.

Guidelines on the Use of MS for Identification, confirmation & Quantitative Determination of Residues, Codex CAC/GL 56-2005 Commission Decision, 2002/657/EC, implementing Council Directive Introduction to MS Quantitation and Modes of LC/MS Monitoring . Introduction: This tutorial applies to the quantitation of small molecules using mass spectrometry in pharmacokinetic analysis. In addition these very same principles can be applied to the quantitation of peptides and proteins in …

2. 2. Liquid chromatography-tandem mass spectrometry (LC/MS/MS) has become the method of choice for pesticide analysis due to its high selectivity and sensitivity as well as its suitability for a wide 2078 Development of a Multiresidue Method for Pesticide Analysis in Drinking Water J. Braz. Chem. Soc. analyte due the competition for retention. Many sorbents (e.g., C 18) are limited in terms of selectivity, being a difficult task due to the different pesticides physicochemical properties. …

A method for determining residues of the new reduced-risk pesticide acequinocyl and its deacetylated derivative hydroxyacequinocyl on fruits and vegetables (grapes, lemons, pears, and tomatoes) by HPLC is described. The pesticides were extracted from the fruits and vegetables with hexane and ethyl 6/6/2018 · What is perhaps more interesting is the large number of compounds that were actually detected in these samples. Clearly, this indicates that many compounds that are not allowed for use on cannabis are still in widespread use. These data also stress the need for states to develop effective testing procedures for the cannabis industry.

APPLICATINS Analysis of 62 Pesticides in Cannabis by LC-MS/MS Scott Krepich and Jeff Layne state with legalization laws for Cannabis use for Medicinal and/ or Recreational purposes has established policies for pesticide Acequinocyl 7.21 W 415 The Insecticide and Miticide Mode of Action Field Guide 1. A Resource to Assist in Managing Arthropod Pests of Turfgrass and Ornamental Plants . Bill Klingeman, Professor, Department of Plant Sciences, The University of Tennessee

Optimizing Sample Preparation for LC/MS/MS of Pesticide Residues in Herbal Teas Author Derick Lucas Agilent Technologies, Inc Application Note Food Testing & Agriculture Introduction Herbal teas are deeply woven into a variety of cultures and generally associated with the promotion of good health by lowering the risk of diseases such as cancer, with the use of different stationary chemistries, its selectivity can be altered dramatically. These render UPC2 a potential powerful tool for the separation of 15 Acequinocyl C24H32O4 385 384.2301 6.2 LC 16 Pyridaben C19H25ClN2OS 365 364.1376 6.37 GC

Page 1 1. Aim and Scope This report describes the evaluation of LC-QTOF-MS for the simultaneous full scan and MS/MS analysis for the detection and identification of 125 verified for use with Shimadzu LCMS-8050 and 8060 systems. The Library contains information that can be used to accelerate method development in LC/MS/MS pesticide analysis including; An average of 8 MRM transitions for each reference standard (with optimized collision energies) are registered in the database including

multiresidue method for the determination of 180 pesticides in foods using GC-FPD and GC-MS (Okihashi et al. 2005) based on the QuEChERS method (Anastassiades et al. 2003). The positive aspects of our method against the ori-ginal QuEChERS were the powerful extraction with the ho-mogenizer and the efficient cleanup with the double-layered SPE. This report describes a validation data of 127 pesticides using a multiresidue method by LC-MS/MS and GC-MS/MS in olive oil. 2. Short Description The homogeneous sample is diluted with n-hexane and extracted with acetonitrile. The purification is carried out using a …

A Method for the Trace Analysis of 175 Pesticides Using the Agilent Triple Quadrupole GC/MS/MS Abstract A GC/MS/MS multiple reaction monitoring (MRM) method has been developed on with the use of different stationary chemistries, its selectivity can be altered dramatically. These render UPC2 a potential powerful tool for the separation of 15 Acequinocyl C24H32O4 385 384.2301 6.2 LC 16 Pyridaben C19H25ClN2OS 365 364.1376 6.37 GC

1/25/2011 · Methods. Efficacy of chlorfenapyr against An. culicifacies and An. stephensi was assessed using adult bioassay tests.In the laboratory, determination of diagnostic dose, assessment of residual activity on different substrates, cross-resistance pattern with different insecticides and potentiation studies using piperonyl butoxide were undertaken by following standard procedures. Description. The NIST 17 mass spectral library, the successor to the NIST 14, is a fully evaluated collection of electron ionization (EI) and MS/MS mass spectra, with chemical and GC data, plus search software to identify your own unknown spectra. It is a product of a more than three decade, comprehensive evaluation and expansion of the world's most widely used mass spectral reference …