12 Questions 26 Answers 0 Followers
Questions related from Salma Salman
Dear all i have a problem with quantification of DDE in cabbage by GCMSD i use quecher method for extraction , solvent vent mode ,i spike blank cabbage by 10 ppm DDE the result was 0.07 ppm !!!! i...
23 August 2014 1,030 6 View
for pesticide analysis by GCMS what's the difference between using Internal Standard and Surgorrate standard ?
05 August 2014 316 4 View
What is the most preferred solvent for dissolving a sample prior to injection on GC/MSD especially for pesticide analysis?
25 July 2014 9,166 32 View
What is the function of the inlet in GCMS, and what's the advantages of a Multimode inlet over other types?
14 July 2014 4,516 4 View
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02 February 2014 7,312 7 View
I want to know the most important application of GC/MS in food analysis and the most common columns suitable for general applications of GC/MS.
23 June 2013 9,914 5 View
I need a standard method for the determination of citric acid, malic acid and lactic acid in antiseptics (detergents) by HPLC
15 February 2013 1,986 6 View
I need a standard method for the determination of pesticide residue in food by GC or GC-MS, or even its code and how can I get hold of it?
25 January 2013 7,327 7 View
Looking for a method to do this.
28 December 2012 5,884 7 View
Can you recommend a method for preparation in order to quantitatively determine vitamin B6, 3,12 in pharmaceutical multivitamin ampules by HPLC?
30 July 2012 5,665 6 View
Can anyone suggest a method for determination of sugars (glucose, fructose, maltose, sucrose, mannose) by using RP-HPLC?
14 May 2012 2,800 13 View
I am working with hexane as mobile phase, UV detector, column c18 at 15C. I got alot of spike air bubbles and i can't get rid of them.
13 April 2012 8,515 13 View
