Why only Copper standard is used to calibrate Atomic Absorption spectrophotometer?

0 Answers   CMET,

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1 why polyesterene film used for ftir calibration ? 2 why k2cr2o7 is used for control of abs in uv ? 3 why holmium oxide used for control of wavelength in uv

3 Answers  

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same sample on two preapration gives differnt result during hplc analysis

3 Answers  

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What is FDA form 482c?

1 Answers   Lupin,

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How to Prepare Dilute Sodium hydroxide solution?

3 Answers   Claris Otsuka,

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What is the procedure for the calibration of ph meter?

1 Answers   IBS,

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In case of dissolution test, if there is variation within 6 individual units however the batch is complying as per S1 criteria, is it necessary to do investigation for the same? What should be the criteria for such variation?

2 Answers  

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Plz explain the formula in uv calibration =Absorbance of the sample ( x ) x 10 x 1000/Weight of potassium dichromate taken in mg

1 Answers  

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What is GF254 means in TLC plate?

1 Answers   Abbott,

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why plane of polarized light rotated by opticaly active compunds?

1 Answers   Glenmark,

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In my analysis by HPLC,In sample main peak and placebo peak are eluting with shorter resolution ( almost look like doublet). how can i get max resolution ? Is changing gradient method is usefull?

3 Answers  

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why has inject 5 injection in assay

2 Answers   Lupin,

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