Answer / venkat narayana

As per your standard test procedure,you decide yours specification, batch to batch (i.e same product)product change over 100 ppm standard we prepared and batch to another batch(i.e. product change) we have prepared 10 ppm standard

Answer / kalyan

First we have to prepare 10 ppm standard solution with the respective solvent then we have to determine the abosorbance of that std by using uv after that we have to find the rinsed or swab sample absorbance by usig uv then we can calculate the result using the formula:(sample absorbance/standard absorbance)*10 then we will get the result in ppm

I have 1 gram of Diphenylamine and want to make a 10,000 or 1000 ppm solution in methanol. How do I make this?

9 Answers   Midas Technologies,

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if you have given one product then how you determine the impurity in that?

0 Answers  

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Why do we use KCl ,K2Cr207,Toulene & Halonium oxide for the caliberation of UV

2 Answers   Apotex,

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When ever we perform system suitability,inject the corresponding standard 6 times why? is thair any reson

4 Answers  

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explain 5 components of gas chromatography ?

1 Answers   College School Exams Tests, Nucon,

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diference b/w packed &capilary columns

2 Answers  

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What is unit of KF?

7 Answers   ZCL,

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Why sodium lamp is used in polarimeter?

1 Answers   Aurobindo, Micro Labs, Mylan,

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how much you expected salary?

7 Answers   GSK GlaxoSmithKline,

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a bottle of concerntrated HCL (36.5) was labelled as 37% (w/w) and density 1.19m/l.What is hcl molarity?

8 Answers  

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what is Fourier Transform

3 Answers   Graviti Pharmaceuticals, GVK,

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mixed 1.0 ml of methanol and 1.0 ml of toluene and injected in gas chromatography.will you prove that both solvents are in the ratio 1:1(not by area normalization)

1 Answers  

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