Answer / s dinesh

Optically active substances have an chiral c-atom. which means it has different molecule(gp of atoms) attached to it.When this light falls on bigger molecule (may be on left or right side) it will not allow it pass through it. In rotates its path like an optical substance.

In GC Why does retention time decrease when temperature increases? Also how does a change in temperature effect selectivity?

1 Answers   Gland Pharma,

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Through assay by hplc(anhydrous basis) product got 100.8% .How much the potency of that product.Moisture content is 1.7%,Sulfated ash is 0.02%,Total impurities are 0.3%

2 Answers  

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From where require to take the RLD sample?

0 Answers  

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Why we use holmium oxide,perchloric acid for uv/vis calibration

4 Answers   Cipla, Orchid, Ratiopharm,

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what is range of Vivible UV ? What is UV& Vivible spctroscopy use for ?

6 Answers  

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Why 10%,20%,30% Sucrose solution is used for the calibration of polarimeter?

5 Answers   Cipla, LGC Promochem,

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in determination of(acetone) moister content we are using methanol replaced by pyredine.what hapend in that reaction.

2 Answers   Glenmark, Neuland,

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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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solvents used in NMR

2 Answers   Laurus,

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What id the resolution factor

1 Answers  

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What is the Calcultion of S/N Ratio.

2 Answers  

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what is the purge flow & how to calculate

0 Answers   Granules,

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