Answer Posted / tejas shah

At 254nm none of the solvent or its impurities show significant interference so the noise will be recorded of pure UV light. i.e. detector noise

how pda detector works over uv?

726

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why does used dry caffien in HPLC calibration?

2017

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what is the importance of peak purity in HPLC and how we can calculate through manul(not software)?

4469

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how decide the clining method and cleaning method validation require for this perticular products?

728

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analytical method validation require to with respect to release specification or shelf life specification?

768

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what is biorelivent dissolution media?

793

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how require to interprit the method precision data of hptlc?

800

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how a particular wavelength can be different for a particular compund while analysing by uv and by HPLC.

2276

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what are risk assement in the analytical qbd?

727

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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

1579

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Why only hydroxy naphthol blue indicator is used for standardisation of 0.05M EDTA solution instead of solochrome Black T or Euriochrome Black T indicator which is used for all sample analysis with 0.05M EDTA solution?

2701

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from where i get mortar pastle for glass bottle crush? it's required for testing of it?

2252

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function of detecter in hplc ,gc and spectroscopy? function of carrier gas in gc?

2648

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In Assy by potentio metry titration method how select MET U ,DET U, SET U,

2138

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Difference between hlaf and rlaf

2086

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