Why base line not start from zero in GC Chromatography analysis.

1 Answers   Orchid,

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How to interpret XRD graphs against standard and limit for same?

3 Answers   NCL,

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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?

0 Answers  

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0.1 atom gram of the unknown element( X)reacts with 2.4 gram of O2 to produce the oxid product . can you tell us, what is the oxid formula ? a) XO b)X2O3 c)XO2 D) X2O4

1 Answers   Ajanta,

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effect of pore size, pore volume, partical size, column length, carbon load on retention time? what is carbon load? what is the use?

0 Answers  

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Why Holium cholorate used in UV Spectro photometer?

7 Answers   Reddy Labs,

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what is dead time in hplc?

3 Answers   Orchid,

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How can we detect a compound in hplc which does not have any chromofore?

1 Answers  

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In rs method development when we are going area normalization method to dilute standard method?

0 Answers  

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In GC and HPLC ,how we can decide which of following method will be suitable or use for quantitation of chromatogram at the time of method development. 1.Area Normalisation 2.External standard method 3.Internal standard method

1 Answers   Atul,

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why we make titiration of Iron with EDTA ?

1 Answers   Cipla, Sitec Labs,

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In standard weight box used for calibration of analytical balance there are two numbers (Qty) of 20mg, 200mg,2.oGM weights. Why?

2 Answers   Orchid,

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