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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Ratio of Water and Acetonitrile(diluent) is not recommended to use in cleaning method validation,why?

0 Answers   Aurobindo, Reddy Labs,

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What is peak purity and response factor in chromatographic analysis? Why we required to find out response factor?

2 Answers  

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why do we use around only 60 mg of K2cr2o7 in the UV calibration -control of absorbance test?

3 Answers   Reddy Labs,

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In lcms analysis some times we get sodium and potassium adducts. if the compound is havine sodium ions how can we confirm wether sodium is from sample or it is a adduct?

2 Answers   Teva Pharmaceuticals,

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1)What's the meaning of Absorption,give a example. 2)What's the meaning of Adsorption,give a example. 2)what is the difference between Absorption and Adsorption.

0 Answers   VHB Medi Life Sciences,

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what is the concept for adjustment of pH in HPLC buffer solution ? a. Common ion effect b. Counter ion effect and explain me, how we adapt this principles & what is the role of these principles in our method

1 Answers   Apex, Pentagon Labs,

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Why will a solution of aspirin without acid or basic hydrolysis give yellow colour with a solution of Ferric chloride?

1 Answers  

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what is the meaning of PURITY AND POTENCY .what is the difference between PURITY and POTENCY

5 Answers   Orchid,

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what is DIPE limit in residual solvent?

1 Answers  

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what is mean by Q in S1 and S2

3 Answers   Micro Labs,

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What is the purpose of performing dissolution test on routine basis?

3 Answers  

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