viswanathan


{ City } chennai
< Country > india
* Profession * sr.executive
User No # 108254
Total Questions Posted # 0
Total Answers Posted # 4

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Questions / { viswanathan }
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Answers / { viswanathan }

Question { Cadila, 10245 }

maxmimum absorbance of uv
spectrophotometer


Answer

UV region 200 to 400: maximum abs should less then 0.99 (UV optimum range abs 0.01 to 1.0)

Is This Answer Correct ?    2 Yes 0 No

Question { Parabolic, 17103 }

what is the difference between potentiometric assay and
hplc assay


Answer

HPLC:
Exact quantification method.in case of any impurity present in the same it will eluted in the different RT.

Potentiometer:This also quantification method,it will not suitable for all the sample.Because if any impurity present in the sample it will consume the titrant.so that it is not correct method.

Is This Answer Correct ?    13 Yes 2 No


Question { Medreich, 5887 }

diffrence between known impurity and specified impurity?


Answer

specified impurity:It' identified as known impurity but it cannot be characterized.

known impurity:it's process related or degraded impurity.

Is This Answer Correct ?    3 Yes 0 No

Question { Aurobindo, 26151 }

What is the meaning of 624 in DB-624 Capillary column used in GC?


Answer

DB-624:DB means Dura bond make
624 means USP code for column packaging material.it contain

94% dimethyl poly siloxane,6%cynopropyl phenyl

Is This Answer Correct ?    25 Yes 1 No