02 February 2019 2 3K Report

Is there any method for determination of Free Phenol, Phenol Formaldehyde & Farfuryl alcohol in phenolic resins by HPLC without DNPH derivatization ?

More Dr. Santosh Kumar Bhardwaj's questions See All
Turmeric oil analysis by HPLC ?

My research interest, is identification of curcumin metab. and unknowns in Turmeric oils by using LC /LCMS. but not getting recovery so , if any one have proper sample preparation method for...

11 December 2016 4,163 3 View

Can anyone please let us know the method for purification / separation of fullerenes using HPLC or Preparative HPLC ?

Can anyone please let us know the method for purification / separation of fullerenes using HPLC or Preparative HPLC. I had also found some literature for same by using Bucky prep Cosmosil Column...

06 July 2016 1,998 3 View

Analysis of Amino Acids by HPLC ?

We are planning to develop method on analysis of Amino Acids in food matrix (Cereals,Pulses , Oil Seeds etc) by HPLC with pre or post column derivatization methods.Since this is new to us so could...

01 February 2016 1,070 7 View

Can anyone help us with a lumenfantrine USP method ?

As per  USP 38 column temperature mentioned as Column temperature: Beginning of column, 50°; end of column, 35° for Lumenfantrine by HPLC This created lots of confusion could anyone clarify on...

01 February 2016 10,144 5 View

Can I use Chloroform as mobile phase in C18 column?

Can I use Chloroform as mobile phase in C18 column , as my sample is soluble in 90% Chloroform 10% methanol? If Chloroform can be used with C-18 Column than how much % v/v with Methanol or...

08 September 2012 4,411 21 View

Analysis method of tylophorine content in crude extract of tylophora indica by HPLC?

Can anyone advise on how to do analysis of tylophorine content in crude extract of tylophora indica by HPLC and which column & mobile phase is most suitable?

08 September 2012 6,216 4 View

Mass spectral interpretation

Dear all, I would like to know the best book for interpretation of mass spectra, if any of u can sugeest then kindly suggest me [email protected]

07 August 2010 3,821 3 View

HPLC

BOOK HPLC Method Development 2nd edition by Snyder is best book for learners and method developers and analytical chemists

07 August 2010 8,259 5 View

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Why is electronic energy 0.000 for liquid crystal compounds and is invariable with temperature in Guassian 09 software?

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RNA later for the preservation of RNA in fecal samples at room temperature for one day (37°C)?

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Why is TLC not a form of partition chromatography?

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