why base line not starts from zero in gc?

1 Answers   Aurobindo, FDC, Reddy Labs,

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I have compare C2H2-air and C2H2-N2O flame AAS on determination calcium. Both use same range of std to plot calibration curve. (2-6ppm) When i measure the sample with phosphate, KCl and LaCl, C2H2-N2O flame give false positive result, around 0.5ppm. When i measure the sample with phosphste, KCl and EDTA. C2H2-N2O flame also give 0.5ppm false positive. But both above mentioned sample would not give false positive when measured by C2H2-air flame. What is the reason?

0 Answers  

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why holium oxide prepared in 10% HCLO4 SOLUTION

0 Answers  

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How you start the method development of unknown compound.

1 Answers  

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What is Rf value& Rx value in TLC?

1 Answers   Abbott,

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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 use holmiumperchlorate in calibrating uv

4 Answers   Aurobindo, DRL, MSN Pharma,

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How does GC did work?

1 Answers  

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some product having water content method with pyridine and ethylene glycol mixture instead of methanol? how they are selecting and methanol is not suitable solvent how ?

0 Answers   Micro Labs, VMSRF,

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A ha tc is actual defination of retention time?

0 Answers  

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

0 Answers   Neuland,

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WHAT IS DIFFERENCE BETWEEN RRT AND RRF IN HPLC

2 Answers   Cadila,

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