Answer Posted / dignesh udwadia

sucrose is high oxidation and 1,4-benzoquinone is vary low oxidation to cover higher and lower oxidation range we are used above mention material for calibration.

Explain the relations between number of carbon atoms in alkanes and retention time ?

2205

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some product having water content method with pyridine and ethylene glycol mixture instead of methanol? how they are selecting and methanol is not suitable solvent how ?

2704

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for heavy metal test lead used in which form pure form or any other form for preparation of lead standard sol

6141

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before starting analytical method valodation what you checking? and how giving preference to start validation?

862

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What is third generation HPLC Columns?

2035

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Which is the highly polar and highly non polar column in HPLC?

2347

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How can we confirm the HPLC column is end-capped or not? Is it possible to identify by physical appearance?

3263

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what is the principle of UV Vis spectroscopy, AAS, ICP OES,ICPAES, ICP-MS and FTIR

9298

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How to fix the sample conc. in Related substances test by HPLC?

1145

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if content uniformity passing but dissolution varrying then what is next step?

936

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In IR spectra, generally a molecule vibrates without apply emr or ir light?

2027

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WHAT IS THE CRITERIA FOR SELECTION OF TIME OF DISSOLUTION AND THE MEDIUM OF DISSOLUTION?

2625

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acceptance criteria for lod & loq by standard deviation of response and slope??

2642

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analytical method validation require to with respect to release specification or shelf life specification?

850

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Tell me something about Vitamin A test method by HPLC

2725

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