Answer Posted / dharmesh bhatt

visually not possible unless one can try on the system. but another way is to check in the column literature which is now easily available on net. or can ask the same to column supplier.

What are the primary considerations in extractables and Leachables ?

2261

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

1794

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How to set analytical specification for combination products?

812

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What is similarity factor?

1185

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Why to use propyl paraben in HPLC gradient calibration

7419

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What is the difference between spectro meter and spectro photo meter?

11452

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if tech transfer fails whay require to do?

823

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If we do accuracy at same concentration at which linearity planned,what is the need to do linearity separately?

2282

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Why only Copper standard is used to calibrate Atomic Absorption spectrophotometer?

2715

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How can we confirm the HPLC column is end-capped or not? Is it possible to identify by physical appearance?

3196

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WHICH STANDARD WE USE IN SILICA ANALYSIS IN SILICA-GEL METHOD FOR SOLID SAMPLE

2115

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please explain about aluminium hydroxide assay

1117

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what is %labelled amount in content uniformity of dosage unit and its calculation?

5198

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How to compare XRD graphs against standard and carry polymorpism study of API's by powder XRD method?

3852

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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

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