Salma Salman

16 Questions 38 Answers 0 Followers

Questions related from Salma Salman

Reasons for ticking sound from foreline oil pump in GCMS?

regular ticking sound from GCMS foreline oil pump, the sound incrase during injection

10 October 2017 9,591 2 View

Dear all , i need answer for those question :How can you prepare and seprate nanobiomaterials, prepare of surface modification of metal particles ?

i need to general methodolgies

01 January 2016 3,681 3 View

Inlet in GCMS

what's the function of inlet in GCMS , and what's the advantages of Multi mode inlet over other types ?

07 July 2014 9,119 1 View

Can anyone suggest a suitable solvent for GCMS?

What is the most preferred solvent for dissolving a sample prior to injection on GC/MSD especially for pesticide analysis?

07 July 2014 4,882 29 View

How can I calculate LOD and LOQ for sugars in honey (fructose, Glucose ,Sucrose) when they are measured by HPLC , RI detector, NH2 Column?

02 February 2014 9,261 8 View

What is the best LC - Column for carbohydrate analysis?

If I have the choice between 2 amino columns for carbohydrate analysis: Luna amino column from phenomenex and Pinnacle from restek which one should I choose?

11 November 2013 3,415 6 View

Does anyone have experience with amino acid determination of amino acids by GC-MS using a EZ-Fast kit?

Does anyone have experience with amino acid determination of amino acids by GC-MS using a EZ-Fast kit and its advantage over an amino acid analyzer.

09 September 2013 4,604 4 View

Citric acid, malic acid and lactic acid by HPLC

I need a standard method for the determination of citric acid, malic acid and lactic acid in antiseptics (detergents) by HPLC

02 February 2013 6,678 7 View

How can the lactose content in milk be determined using HPLC?

Looking for a method to do this.

12 December 2012 7,066 8 View

Rezex column

does any one use rezex column for carbohydrate analysis by HPLC?

10 October 2012 9,993 0 View

Rezex column for carbohydrates analysis

Does any one use rezex column for carbohydrates which is an ion exchange column? Is it more accurate than amino column for sugar analysis?

10 October 2012 6,224 13 View

Water soluble vitamin in multivitamin ampules

Can you recommend a method for preparation in order to quantitatively determine vitamin B6, 3,12 in pharmaceutical multivitamin ampules by HPLC?

07 July 2012 7,551 7 View

Hypericin and Hyperforin with HPLC

Does anyone have a method for the determination of hypercin and hyperforin by HPLC?

06 June 2012 9,078 11 View

carbohydrates by C18 column

Can anyone suggest a method for determination of sugars (glucose, fructose, maltose, sucrose, mannose) by using RP-HPLC?

05 May 2012 7,085 14 View

How I can get rid of spike air bubbles?

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.

04 April 2012 5,127 14 View

Method for sugar extraction from juice for HPLC analysis.

02 February 2012 1,456 6 View