why chiral separation?

1 Answers  

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Why do we use 500ppb sucrose and 500ppb 1,4 benzoquinone in TOC calibration?

1 Answers  

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When you get Moisture content by KF higher than by LOD, what does this indicate?

7 Answers  

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what are the normalisation, internal standard and external standerd methods in HPLC.

2 Answers   GVK,

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is it nessesary to do solution stability for 7 days?

0 Answers  

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we run the same sample in same method in different flow rates in HPLC,any changes in sample analysis?

2 Answers  

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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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What is the use of tailing factor ?

2 Answers  

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Why using 0.5% acetone in methanol mobile phase for HPLC Gradient performance check.

2 Answers   DRL,

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How decided 10 ppm standard solution in Swab, rinse method.?

2 Answers  

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how calibrate the hplc detector

2 Answers   Cipla, Shraddha Analytical Services,

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what is relationship between absorption and transmittance in u.v.?

11 Answers   Orchid,

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