Comments on: Organochlorine Pesticide Analysis using HRGC/MS/MS http://www.caslab.com/News/organochlorine-pesticide-analysis-using-hrgcmsms.html Science, chemistry and environmental news from laboratory experts Tue, 07 Feb 2012 06:53:50 +0000 hourly 1 http://wordpress.org/?v=3.0.1 By: admin http://www.caslab.com/News/organochlorine-pesticide-analysis-using-hrgcmsms.html#comment-1189 admin Tue, 03 May 2011 17:37:11 +0000 http://www.caslab.com/News/?p=38#comment-1189 Hi John, Most EPA methods also have sections on the math to calculate results as per the method requirements. There are a multitude of books about chromatography which should include sections on calibration and calculations. A search of the internet will yield many references. I've found that colleges often post course material online that you can view. Regards, Columbia Analytical Hi John,

Most EPA methods also have sections on the math to calculate results as per the method requirements. There are a multitude of books about chromatography which should include sections on calibration and calculations.
A search of the internet will yield many references. I’ve found that colleges often post course material online that you can view.

Regards,
Columbia Analytical

]]> By: John Steinheimer http://www.caslab.com/News/organochlorine-pesticide-analysis-using-hrgcmsms.html#comment-1182 John Steinheimer Sat, 09 Apr 2011 23:58:23 +0000 http://www.caslab.com/News/?p=38#comment-1182 I am new in the feild working with CG and HPLC doing the math, is there a program or software I can used to inprove my math skill in this feild thank you for your time I am new in the feild working with CG and HPLC doing the math, is there a program or software I can used to inprove my math skill in this feild

thank you for your time

]]> By: Columbia Analytical http://www.caslab.com/News/organochlorine-pesticide-analysis-using-hrgcmsms.html#comment-252 Columbia Analytical Mon, 23 Nov 2009 16:02:40 +0000 http://www.caslab.com/News/?p=38#comment-252 Hello, we do not offer training on how to run instruments. Those type of classes/short courses are usually offered by the instrument manufacturers themselves as each instrument will operate a bit differently. Also, most Universities provide training on the basics of gas chromatography as part of their curriculum. We do offer technical classes on other subjects. A list may be found on this page: http://www.caslab.com/Seminars-Offered/ Hello, we do not offer training on how to run instruments. Those type of classes/short courses are usually offered by the instrument manufacturers themselves as each instrument will operate a bit differently. Also, most Universities provide training on the basics of gas chromatography as part of their curriculum. We do offer technical classes on other subjects. A list may be found on this page: http://www.caslab.com/Seminars-Offered/

]]> By: EMMA MUTEBI http://www.caslab.com/News/organochlorine-pesticide-analysis-using-hrgcmsms.html#comment-250 EMMA MUTEBI Thu, 19 Nov 2009 11:03:36 +0000 http://www.caslab.com/News/?p=38#comment-250 Do you offer tranning in pesticide analysis or short course in the use of Gas Chramatography? Emma Mutebi Dept of Animal Science Makerere University Kampala Uganda Do you offer tranning in pesticide analysis or short course in the use of Gas Chramatography?

Emma Mutebi
Dept of Animal Science
Makerere University
Kampala Uganda

]]> By: Columbia Analytical http://www.caslab.com/News/organochlorine-pesticide-analysis-using-hrgcmsms.html#comment-230 Columbia Analytical Mon, 14 Sep 2009 20:40:44 +0000 http://www.caslab.com/News/?p=38#comment-230 It depends on the scpoe of the project, but we run OC pesticides for approximately 1.2-2x the cost of 8081. It depends on the scpoe of the project, but we run OC pesticides for approximately 1.2-2x the cost of 8081.

]]> By: Rajiv Chawla http://www.caslab.com/News/organochlorine-pesticide-analysis-using-hrgcmsms.html#comment-164 Rajiv Chawla Wed, 20 May 2009 14:51:07 +0000 http://www.caslab.com/News/?p=38#comment-164 The data clearly demonstrate the use of GCMS/MS for the pesticide analyis. Can I get the idea about difference beween the running cost of HRGCMS/ GCMS. The data clearly demonstrate the use of GCMS/MS for the pesticide analyis. Can I get the idea about difference beween the running cost of HRGCMS/ GCMS.

]]> By: Columbia Analytical http://www.caslab.com/News/organochlorine-pesticide-analysis-using-hrgcmsms.html#comment-160 Columbia Analytical Thu, 07 May 2009 18:21:11 +0000 http://www.caslab.com/News/?p=38#comment-160 The GC/MS/MS option provides as good or better sensitivity as GC/ECD, but far superior selectivity due to the tandem mass spectrometers. The HR/GC/MS option provides approximately ten times better sensitivity than GC/MS/MS and also an improvement in selectivity. The selection of the appropriate technique for a project will ultimately be dictated by the data quality objectives coupled with budgetary concerns. By offering several GC/ECD options, a GC/MS/MS option, and an HR/GC/MS option, Columbia Analytical maintains a full menu of choices and can support virtually any project. The GC/MS/MS option provides as good or better sensitivity as GC/ECD, but far superior selectivity due to the tandem mass spectrometers. The HR/GC/MS option provides approximately ten times better sensitivity than GC/MS/MS and also an improvement in selectivity. The selection of the appropriate technique for a project will ultimately be dictated by the data quality objectives coupled with budgetary concerns. By offering several GC/ECD options, a GC/MS/MS option, and an HR/GC/MS option, Columbia Analytical maintains a full menu of choices and can support virtually any project.

]]> By: Bruce Godfrey http://www.caslab.com/News/organochlorine-pesticide-analysis-using-hrgcmsms.html#comment-155 Bruce Godfrey Thu, 16 Apr 2009 19:21:01 +0000 http://www.caslab.com/News/?p=38#comment-155 As the previous writer noted, this is excellent information, well presented. Your results are not at all unexpected....The direction that QC specifications for the EPA GC/ECD pesticide methods have evolved over the last decade points to retiring the GC/ECD methods in favor of tandem MS for production lab pesticide analyses......As one lab manager struggling with making/keeping the GC/ECD Pest/PCB product line profitable, I will happily support the switch to GC/MS/MS for these compounds, all we were waiting for was a robust MS system with ECD sensitivity...good work you guys! As the previous writer noted, this is excellent information, well presented. Your results are not at all unexpected….The direction that QC specifications for the EPA GC/ECD pesticide methods have evolved over the last decade points to retiring the GC/ECD methods in favor of tandem MS for production lab pesticide analyses……As one lab manager struggling with making/keeping the GC/ECD Pest/PCB product line profitable, I will happily support the switch to GC/MS/MS for these compounds, all we were waiting for was a robust MS system with ECD sensitivity…good work you guys!

]]> By: R.GIRIJAN http://www.caslab.com/News/organochlorine-pesticide-analysis-using-hrgcmsms.html#comment-141 R.GIRIJAN Wed, 11 Mar 2009 06:30:00 +0000 http://www.caslab.com/News/?p=38#comment-141 Thank you for sending this excellent information. I am also doing lots of Pharma, Food and Environmental testing using GCMS and GCMSMS. I look forward to receiving such application notes /articles in future too. Thank you once again. Thank you for sending this excellent information. I am also doing lots of Pharma, Food and Environmental testing using GCMS and GCMSMS. I look forward to receiving such application notes /articles in future too. Thank you once again.

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