padmarao


{ City } hyderabad
< Country > india
* Profession * sr chemist
User No # 99944
Total Questions Posted # 3
Total Answers Posted # 4

Total Answers Posted for My Questions # 12
Total Views for My Questions # 27661

Users Marked my Answers as Correct # 3
Users Marked my Answers as Wrong # 0
Questions / { padmarao }
Questions Answers Category Views Company eMail

how can you decide API molucule acedic or basic compound by test?

Posh Chemicals,

2 Analytical Chemistry 9047

Which Pharmacopiea follow calibration of HPLC,GC

Bayer, Reddy Labs,

3 Analytical Chemistry 8930

Why Holium cholorate used in UV Spectro photometer?

Reddy Labs,

7 Analytical Chemistry 9684



Answers / { padmarao }

Question { Biocon, 25538 }

is there any material other than caffene to calibrate hplc
detector


Answer

Uracil and Benzophenone

Is This Answer Correct ?    0 Yes 0 No

Question { 18367 }

What is the difference between HPLC and GC?


Answer

HPLC:mobile phase is liquid and stationary phase solid(silanes)
L=max 250 mm
Separarion:Based on adsorption
GC: mobile phase is gas and stationary phase liquid coated solid(silaxoneas)
L=30M
Separarion:Based on partition

Is This Answer Correct ?    1 Yes 0 No


Question { 2872 }

What is the composition of a C18 column?


Answer

C18: Octadecyl silanes

Is This Answer Correct ?    0 Yes 0 No

Question { Aurobindo, 5588 }

What is Diffidence between Normal Detector and PDA Detector?


Answer

UVdetector: detect fixed nms( 254nm)

PDA detector: multi nms can detect (190-780 nms) and used stress study for Peak purity scan 3D images and method validation purpose

Is This Answer Correct ?    2 Yes 0 No