Answer / vivek vaidya

1-2 PPM

In the test for control of absorbance in UV calibration why do we use only potassium dichromate and what is purpose of taking a specified amount of 57.0-63.0mg?

8 Answers   Aurobindo, Cipla, FDC,

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What is the principle of HPLC?

3 Answers   Cipla, Lupin,

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What is the difference between bulk property detectors and Solute property detectors vivimed labs limited

3 Answers  

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Why sulpuric acid only used to ROI but not used nitric acid and some other acids?

7 Answers   Cadila, Laurus, Ranbaxy,

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what is full form of RVT

1 Answers  

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why we get negative values in uv when i placed sample which has some concetration but not in standard

1 Answers   Nirma,

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in hplc chromatogram started from left to right and in uv spectrum started from left to right

1 Answers  

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How can we calculate "confidence interval" in analytical method validation? Pl. explain with example.

1 Answers   Cipla, Rampex Labs,

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why reference flow required during hplc analysis on rid?

1 Answers  

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How long we can use hygroscopic reference standard in terms of water absorb.I mean in line with respective monograph's specification or more than that?

1 Answers  

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Why using 0.5% acetone in methanol mobile phase for HPLC Gradient performance check.

2 Answers   DRL,

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in loss on drying Why follows on constant weight not more than 0.5 mg, any region

1 Answers   Biocon,

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