Answer / sarita puri

p32

Qc interview questions

0 Answers   Apotex,

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what is the difference between heavy metals and sulphated ash

2 Answers   Aurobindo,

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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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WILL YOU DRY DST BEFORE FACTOR DETERMINATION BY USING KARL FISHER TITRATOR

4 Answers   Aurobindo, Meghmani Organics,

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is ther any guidline is available for limt of peak fronting.and what is the limt of peak fronting.

2 Answers  

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What is the Column Endcaping in HPLC ?

3 Answers   Aptuit Laurus,

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iam usig ph buffers merk. manually how to prepare ?

0 Answers  

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what is concentration of oxygen in U.H.P. grade N2 cylinder

1 Answers  

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Home heating oil or furnace oil what is made from? Can (base oil plus diesel/kerosen) = home heating oil?

0 Answers  

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what is rs test why we are perfoming rs test

2 Answers  

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What is the correct way to digest milk powder to get the corrrect value of Fe and Zinc?

1 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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