Mahmoud Samir El Shabrawy

9 Questions 7 Answers 0 Followers

Questions related from Mahmoud Samir El Shabrawy

What method can be used to determine pesticide residue from volatile oil ?

could you please help me find a review paper or several method for pesticide residue analysis from volatile oil such as (orange oil, chamomile oil, marjoram oil, jasmine oil, onion oil and basil...

17 May 2017 1,596 3 View

What tests can be done to compare between two method of extraction using LC_MS/Ms ?

I want to compare between the two extraction method I used this term Recovery,matrix effect ,time,cost Is there Any other?

30 October 2016 4,524 2 View

Can any one help me find compete thesis in the field of pesticide residue analysi?

I want to gain experience in the field of pesticide residue analysis using LC_MS/MS and GC_MS/MS (TRIPLE QUADRAPOLE) SO i want to read a lot of thesis to gain experience from it thank you in advance

29 February 2016 3,219 2 View

Should the standards be fatty acid or fatty acid methyl ester in fatty acid analysis?

Standards should be fatty acid or fatty acid methyl ester and how to measure the recovery in fatty acid analysis.

19 March 2015 7,225 9 View

What is the most common extraction method for pesticide residues analysis in cotton matrix only?

See above

26 November 2014 6,442 1 View

What is the common method for the analysis of hormones(especially 17 beta estradiol) by LC_MS/MS and or GC_MS/MS?

multi_residue method for the analysis of hormones in meat liver heart fat using LC_MS/MS and or GC_MS/MS

03 November 2014 3,940 6 View

In the preparation of supercritical ethanol from ethanol (temp=241c ,p=6.1Mpa) what is the gas flow nitrogen or hydrogen?

What is the gas flow nitrogen or hydrogen?

23 May 2014 9,551 2 View

Can I use core shell catalysts as a sulfur guard bed?

If it is possible, can anybody quickly give me some publications about this subject?

02 April 2014 1,682 0 View

What are the advantages and disadvantages of graphene as a support catalyst over alumina silica carbon nanotube carbon black?

04 February 2014 270 2 View