Answer Posted / dnyaneshwar

In uv analysis you can analyse your sample at 4 differnt
wavelenth (depending on the make of HPLC instrument) in pda
analysis you can analyse your sample in the range of 190nm
to 800nm

what is mean by nitrosamine impurities?

1016

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What is the main difference between ODS1 and ODS2 Hplc column.

5122

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Many times I don't got a caffeine peak in calibration of hplc using guard column ❓

1744

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why does used dry caffien in HPLC calibration?

1983

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if you get peak in blank then what require to do?

909

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What is the diference between residual solvents and organic volatile matter

1963

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In GC calibration,what is the procedure to calibrate the TCD (thermal counductivity detector)suggest ?

3119

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In performance Check of GC Why Hexadecane Peak is Considered 

2987

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[3/30, 13:29] Manoj P Venkatpurwar: How hplc column selection according to structure? How mobile phase buffer selection on molecule structure?

708

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when we talk about change in entropy we consider total entropy means of surround +entropy of system but when we talk about change in Gibss free energy we consider entropy of system.explain with reason.

1985

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IS THERE ANY EQUIPMENT TO CHECK AND CALCULATE THE POLARITY OF A LIQUID?

2392

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Which is the highly polar and highly non polar column in HPLC?

2238

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Related substance method equivalency on control sample or spiked sample?

712

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what is different when impergnated silica plates are used in separation of azo dyes using column chromatography?

1972

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Did anybody have method for acetyl cysteine effervescnce tablet

2198

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