Answer / naveen

both are primary standards with high purity and have known wavelength maximum. So, can be used for calibration of HPLC.

Answer / mahdi

because because sharp absorbance bands and good solution stability of caffeine, this substance used for calibration of UV detector.

Answer / mahesh patil

Because caffeine gives two maxima and one minima and it is more stable compound.

Answer / bharat amipara

Its a stable small difference in temperature and atmosphere variation

Answer / sridurga

caffine and uracil will detect through out uv region 

Answer / mahendra vaghela

Both compound are respond on multi wavelength.

In chromatograpbic purity 90% is there, in assay 70% is there. How will you prove remaining 30%.

3 Answers   Dr Reddys,

WHAT IS THE USAGE OF REFRACTIVE INDEX IN PHARME FIELD

3 Answers  

If suppose 10 methods of dissolution given in pharmacopoeial for single content product then which method out of 10? or all 10 require to follow?

0 Answers  

Why Peak Purity is not determined in GC analysis?

1 Answers   GSFC, GVK,

What is polymorphism?which type of compounds exhibits polymorphism?

2 Answers   Torrent Pharma,

what is the difference between capillary and glass column in GC

1 Answers  

why 0.005 M sulphuric acid is used to calbrate spectrophotometer and why caffiene is used for calibrating hplc

2 Answers   GVK, Torrent Pharma,

What is the difference between void volume and delay volume in HPLC?

3 Answers  

Please do not join if u got offer in oncotherapies ltd (STRIDESARCOLAB)especially Mr.Mahesh Bhatt team because job is not secure his team and doesn't have confidence on him becareful this offer?

1 Answers   Strides Arcolab,

Difference between related substances & impurities

2 Answers   Biocon,

give tha clarity about peak purity concept

3 Answers   Aurobindo, Reliance Life Sciences,

in dissolution if one bowl got 70 percent 2nd bowl got 80 percent and 3rd bowl got 90 percent then how proceed?

0 Answers