Ashray Gupta

11 Questions 20 Answers 0 Followers

Questions related from Ashray Gupta

What is the percentage (%) amount of 18β-glycyrrhizic acid in Total Glycyrrhic acid?

I have a procedure for analysis of total Glycyrrhic acid in Liquorice Dry Extract. But I want to evaluate 18β-glycyrrhizic acid. Can anybody tell me what is the percentage content of...

10 October 2014 1,791 2 View

What is the best way of reducing bioburden in a finished powdered product?

I have a problem of high bio burden (TAMC TYMC E choli etc) in some of my products. I have managed to reduce Yeast and Fungi with dry heating at 100 C but i am not able to reduce E .Choli . Please...

07 July 2014 707 4 View

How can we use the value of A(1%, 1cm) in the calculation in an analysis by spectrophotometer?

I have a assay where absorbance has to be measured and in which the A% value is given and I want to find out the % of the material present. The method is according to the pharmacopeia . please guide.

09 September 2013 4,095 7 View

Is there any compound named potassium biochromate?

I have an analysis which involves the use of Potassium Bichromate but I am not able to find it in any chemical list. Are Potassium Dichromate and Potassium Bichromate the same thing or different?

09 September 2013 9,284 2 View

Can anyone suggest a simple method of determination of chloride in berberine tannate?

Please suggest a simple method of determination of chloride in berberine tannate. The method given in JP (Japanese Pharmacopoeia) is very complicated and is very confusing. Please suggest any...

08 August 2013 3,045 2 View

Reaction and manufacturing technique of Polyurethane foam using Polyol and MDI

Can anyone guide me about the mixing ratio of Polyol and MDI for the formation of Polyurethane foam(PUF) and Polyurethane coating liquid?

05 May 2013 9,796 1 View

Significance of Linalyl acetate, Linalool and β-Caryophyllene in natural oil?

With varying concentration of Linalyl acetate, Linalool and β-Caryophyllene, how is the fragrance and the quality effected? What is the significance of these compounds in oils of lavender? Does...

04 April 2013 1,790 2 View

Please tell me the assay method for calculation of phosphate in sodium hexametaphosphate

03 March 2013 3,120 2 View

Can anyone guide me with the simple assay methods for the different salts of berberine? Titration or a UV method is preferable.

Berberine

01 January 2013 9,116 0 View

Can any one guide me about designing of extraction plant by super Critical Carbondioxide

I have a project on designing of extraction plant by super critical carbon dioxide, what are the essential steps?

01 January 2013 7,741 2 View

Can anyone explain the use of Sodium Hexametaphosphate in Boilers?

What is the ratio in which Sodium Hexametaphosphate should be added in the boiler water to prevent scaling?

01 January 2013 942 3 View