Why are EDTA used to etimation of Ca,Mg etc, in Water analysis?

3 Answers   Reddy Labs,

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on what basis SOP's can be changed? IF mobile phase ratio is 70:30 to how much % can we change the ratio in HPLC process

7 Answers   Cipla, Ranbaxy,

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in stress study if your api not soluble in hcl naoh h2o2 then what require to do?

0 Answers  

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Retention time & Relative Retention time Definition & between difference? How to Calculate response factor(RF) & relative response factor(RRF)?

3 Answers   MSN Pharma, Titan,

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When performing Moisture content how to you say only Methanol react with water not product Explain?

2 Answers   Orchid,

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How to calculate signal to noise ratio by this formula 2H/h where h from where and how to measure

2 Answers  

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What is the difference between Capillary column and Packed column.

7 Answers   Cipla, Hetero, Sun Pharma, Supreme Petrochem,

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why we use Dichlorobenzene.nitrobezine.t-butyldi sulhate.for calibration of gc Head space

0 Answers   Raks Pharma,

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What is meaning of audit trail in hplc

3 Answers   DRL, Lee Pharma, Raks Pharma,

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importance of internal standard and in what conditions it is used?

1 Answers  

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if out of two set of results of moisture analysis first 1 is passing, second one is failing, is it oos ? or vice a versa first 1 is failing and second one is passing. for information mean value to be reported and in mean value the substance is ppassing, is it oos or normaal mean value to be considered?

1 Answers   JBCPL,

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if v use HELIUM & ARGON instead of NITROGEN as a mobile phase what happen in GC SYSTEM ?

5 Answers   Cipla, Reddy Labs,

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