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why require the ph, buffer during hplc mobile phase?
if your product is soluble in 0.1n hcl and water then which you choose as media from these 2 media?
2. Two grams of Benzoic acid are dissolved in 200 ml of water and extracted with 200 ml of diethyl ether. The distribution coefficient of benzoic acid is 100, and its dissociation constant is 6.5 10-5. Calculate the distribution ratio (D) of benzoic acid at pH 2, 5, and 6. 3. Calculate D at pH 2 to 10 (1 unit apart) in the above problem, and plot D versus pH.
How to establish relative response factor for hplc. Why it is required?
mahagenco syllabus for the post of chemist
We use Potassium Dichromate solution for the calibration of UV-Visible Spectrophotometer in UV region. My question is to calibrate visible region which solution could be used in photometric accuracy
for heavy metal test lead used in which form pure form or any other form for preparation of lead standard sol
how require to set assay concentration for standard and sample?
how to develop the icp ms method? Application of icp ms?
what type of question will ask in the interview of lab chemist.
how to decide for one product require water content or LOD?
AT WHAT CONDITIONS WILL YOU ANALYSE A SAMPLE,WHICH ARE PRESERVED AT OTHER THAN THE AMBIENT CONDITIONS?(ie COLD STORAGE SAMPLES BELOW 20* CENTIGRADE?
in sampling of raw material which side is pasted sampled labels
in dissolution why pool sample needed? in which type of drug pool sample need?
WHAT IS THE PURPOSE WE USE HCL, CHOPPER, BURNER, MONOCHROMATOR in AAS? PLEASE EXPLAIN BRIEFLY
