Answer Posted / dkreddy

Assay by HPLC Specific
By Potentiometry Non-Specific

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

5304

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My question about gas chromatography sulfur chemiluminsecence detector. I test unknown sample gas by GC-SCD (calibrated ) and the result of *H2S is 279 PPM , *but when I test the same sample with the GC-TCD (calibrated ) the value of *H2S is 2500 PPM . I'd like to inform you that both GCs are calibrated and have very good operation conditions with stable parameters . the question is if the sample gas with higher H2S over detection limits of SCD detector (1000 ppm). why the result it 279 ppm Best regards

1649

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why multimedia dissolution require to do?

863

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we are performed SOR for a particular product the limit is -6 to -10.We face particular bathes it is not meeting the specification.we performed diffrent instrument diffrent analyst we are getting diffrent diffrent results.solvent is dimethyl sulfoxide what could be the reasion

1918

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why we use a particular hplc column for a particular compound give reasons?please

2787

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What is viod volume and peak purity in HPLC?

2927

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

3016

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in gas chromatography what is the difference between gas flow rate and average linear velocity ?

2650

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How they found 1mL of K.F reagent is equivalent to 5mg of water and if we change the composition of K.F reagent, is it can neutralize more amount of water?

1827

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what is the principle involved in turbidometry and nephelometry ?

4204

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what is the principle of UV Vis spectroscopy, AAS, ICP OES,ICPAES, ICP-MS and FTIR

9296

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How can we calculate "confidence interval" in analytical method validation? Pl. explain with example.

4360

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if you given one product then which tests you will perform?

749

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please explain about aluminium hydroxide assay

1178

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What is similarity factor?

1257

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