Answer Posted / ramakrishna

Wavelength accuracy

what is the acceptance criteria for enteric coated tablets in 0.1n hcl validation in each parameter?

888

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What is the diference between residual solvents and organic volatile matter

2045

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What is gelatinization?

1618

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how much mass should be there in volumetric flask while in preparation of sample for assay? 

2577

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acceptance criteria for lod & loq by standard deviation of response and slope??

2591

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why we are using benzene, anyline in acetic anhdride assay titration method?

2114

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for inorganic molecules require to do RS, Assay and disso?

732

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What is the difference between Discriminating media and DPDM(Dissolution Profile with Different Media)

7540

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in sampling of raw material which side is pasted sampled labels

1836

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Why potassium dichromate is used in calibration of uv?

1984

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Why only 1.2 million lux hours require in photostability study?

1032

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

9246

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please explain about aluminium hydroxide assay

1132

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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

1596

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

1819

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