Answer / brijesh maniyar

known impurities we have standard of usp in case non impurities we have no standard of usp.

How to determine retention time in Chromatography

2 Answers   Mylan,

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hii, i'm had a sample of 1L that gone through extraction & evaporation. i used 0.5ml of methanol for reconstitution before injecting the sample to HPLC. i made a calibration curve using a standard solution but now i'm confused about how to display the concentration i got from the sample. for ex. i got 0.2ug/ml how i'm gonna explane this is for the 1L ? please help .. i'll really appreciate it thanks

1 Answers  

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What is the difference between chiral cel OD-H & OD-RH ?

3 Answers   Aptuit Laurus,

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Why linearity of detector performed in HPLC calibration

2 Answers   Cipla, Intas,

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What is the difference between uplc and hplc

4 Answers   AAU Assam Agricultural University, Hetero,

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How can we calculate offset value pH measurment

0 Answers   Dr Reddys,

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what is the difference between potentiometric titration and karl fischer titration?

0 Answers  

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In HPLC Chromatographic separation Resolution equation is Rs = 1.18 (tR2 –tR1)/wh1+Wh2, Where, tR2 and tR1 is run time of eluent ratios of the distances from the point of application to the centers of the spots and the distance travelled by the solvent front from the point of application (retardation factor), and Wh1and Wh2 , is peak width of at half height. What is 1.18 ?

1 Answers  

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Please give idea about method development for cleaning method and how maco level establish

0 Answers  

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What is GF254 means in TLC plate?

1 Answers   Abbott,

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how to pepare 6.8 pH phosphate buffer

10 Answers  

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principle of AAS & its uses ?

1 Answers   Auriga,

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