What impact analysis required for out of calibration and how to proceed

2 Answers   Aventis,

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How we will choose pH of a mobile phase if analyte pKa value is 4

2 Answers   Celon Labs, Laurus,

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Dear Sir, This is Thirunavukkarasu am working in Ordain Health Care AR&D, Am Having one problem While doing method development my question Metadoxine and Pyridoxine same chemical nature and structural activity i tried lot of methods but Analyte eluted same Retantion time i cant separate both peaks. solubility, pH both are same only only difference melting point metadoxine 210 C Pyridoxine 102 C please do the help needful for me

5 Answers   Ordain Solutions,

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what is the criteria for choosing capillary column in GC??is it dependent on sample load?

3 Answers  

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class of solvent regarding Residual solvent e.g. Acetone his class

1 Answers  

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in sampling of raw material which side is pasted sampled labels

0 Answers  

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1)why use benzophenon,uracil in hplc calibration. 2)why use sucrose in polarimeter calibration. 3)what is S/N ratio, noise and drift in hplc 4)how we can find lod and loq in method validation

1 Answers  

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What is the difference between c8 and c18 hplc column?

1 Answers  

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how many types of balance calibration test?

0 Answers  

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%lod always grater than %water content for same product??

1 Answers  

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Describe your field experience sample type collected,sample techniques,field measurements taken and equipment used?

0 Answers   Apex, BNM, Ranbaxy,

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Why 1.2% KCl is used for limit of stray light? and why limit of stray light is required in UV calibration?

5 Answers   Lupin, Ranbaxy,

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