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hitesh


{ City } baroda
< Country > india
* Profession * sr.executive
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Questions / { hitesh }
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Is it necessary to inject three replicate for accuracy in AMV.

Amoli Organics,

1 Analytical Chemistry 3932



Answers / { hitesh }

Question { 54920 }

What is unit of pH?


Answer

Pls join school again.

Is This Answer Correct ?    0 Yes 0 No

Question { GVK, 6704 }

Why Peak Purity is not determined in GC analysis?


Answer

Peak purity is characteristics of any detector. In hplc. But in GC we ionisation occurs it is itself characteristics of did detector. That's why no need to calculated.

Is This Answer Correct ?    2 Yes 0 No


Question { 11551 }

what is lod and loq


Answer

Further lod does not quantified exact values.but visually detected.
In loq must quantified exact values. And meets the rsd requirements

Is This Answer Correct ?    0 Yes 0 No

Question { 8194 }

wen v have polr solvent then which type of column use in hplc


Answer

Start with ç8 then ç18

Is This Answer Correct ?    1 Yes 0 No

Question { Pharmaceutical, 22386 }

In HPLC when we use Isocratic method, Gradient method in
hplc?


Answer

Sort n simple, large no.of impurity separated in gradient but it is take laser analysis time,while in isocratic also large no.of impurity got separated but it takes too much time kp to 2 to 5 our depends compound / impurities nature.

Is This Answer Correct ?    1 Yes 0 No

Question { Cipla, 4712 }

Why pyrene is also use for calibration if detector


Answer

Bcoz. It gives higher absorbance band ,lambda max 373 nm .rather than caffeine. That's why

Is This Answer Correct ?    2 Yes 0 No

Question { Cipla, 13838 }

why we use 0.1% acetone in gradient calibration of HPLC?


Answer

Check the cutoff value if acetone. Then u answer your self.

Is This Answer Correct ?    1 Yes 7 No

Question { Aurobindo, 6698 }

What is Diffidence between Normal Detector and PDA Detector?


Answer

Normal means UV. U can analysis max 2 wavelengths. But in PDA u can analysis range 190 to 800 nm. Also u can check peak purity by using this PDA.

Is This Answer Correct ?    7 Yes 0 No