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Answer Posted / priyanka
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Principle of single pan analytical balance
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?
What is the principle of HPLC, GC, LCMS, GCMS,LC QQQ, GC QQQ, LC Q TOF and GC Q TOF. What are the applications and Specificity?
why salisylic acid not using now days for disdolution calibration?
What is similarity factor and its use in api strength?
what is %labelled amount in content uniformity of dosage unit and its calculation?
which situation gc hs and gc als require to use?
why are measure gas flow " ml " in Gas chromatography
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
in which situation ion pair require to use?
In Assy by potentio metry titration method how select MET U ,DET U, SET U,
how much mass should be there in volumetric flask while in preparation of sample for assay?
Colorimtry
Why we used in n-butyl acetate water content terminology while in ethyl acetate we used moisture content terminology?
In HPLC calibration, caffeine is used as primary standard for wave length calibration due to caffeine is having dual maxima at 273 & 205 nm and one minima at 245 nm. Any body can give reference of these details from any pharmacopeia (with chapter no.) or any other authentic guideline?
