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 difference between Primary and secodary reference standard?

2 Answers  

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a bottle of concerntrated HCL (36.5) was labelled as 37% (w/w) and density 1.19m/l.What is hcl molarity?

8 Answers  

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which detector is used in IR

3 Answers   Hetero,

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What is the b/W dead volume and dwell volume ?

2 Answers  

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What is the use of ELSD in HPLC?

3 Answers   Anthem,

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How does GC did work?

1 Answers  

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how to calibrate hplc & gc

0 Answers   Cipla,

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What is the difference b/w OVI Solvents and Residual Solvents in case of Gas Chromatogaphy and What is its Detection Limit?

8 Answers   Jubilant Organosys, Suven Life Sciences,

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WHY POTASSIUM HYDROGEN PTHALATE IS USED FOR PERCHLORIC ACID? What is difference btw UV detector & RID detector? what is dissolution? What is unit of KF? what is the significant of pH in HPlc?

1 Answers  

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Suppose we prepared pH buffer solution in lab.and calibrate against NIST solution, and same shall going to used upto 30 days. is it possible to stable pH and apperance ? suggest ?

1 Answers   Orchid,

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What is split

4 Answers   Vimta Labs,

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