1. Categories >> Sciences >> Chemistry >> Analytical Chemistry
  2. Suggest New Category
Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

for heavy metal test lead used in which form pure form or any other form for preparation of lead standard sol

Watson Pharmaceuticals,

1 5315

we run the same sample in same method in different flow rates in HPLC,any changes in sample analysis?

 2 6588

For limit test of heavy metals in BP, Method C require that the substance is ignited at a temperature not exceeding 800 °C. Why confines such the temperature?

 3502

For titration in anhydrous media with perchloric acide, if lack of titrator, Which indicator is been used for replacement. How calculate pH of test solution to choose suitable indicator?

 1798

if the flow rate is increases then any changes in retention time in hplc

 1 7223

Whatn is HPLC

HPLC, Jubilant, Orchid,

1 6563

what is the limit of Correlation for IR test compare to the standard and test

Nakoda Chemicals,

3 8883

IS THERE ANYWHERE MENTION THAT THE RE PROCESS BATCH REQUIRE TO KEPT STABILITY STYDY

Nakoda Chemicals,

2 5417

why holmium perchloate solution in Uv calibration

Alembic,

2 9726

why do we have to used saturated ammonia in TLC

Cipla, IPCL, Mylan,

3 10520

stability study is going on up to 3years for famotidine-USP but the pharmacopeia is revised and tlc test is replaced with hplc test. At the 4th year frequency the product is failed in hplc test .how can i assain the expiry or retest date and can i stop or continue the programme?

Nakoda Chemicals,

2 5703

how to correct peak when peak comes broader in shape? How to do calibration of HPLC?

Mankind,

2 7328

HOW TO CALIBRATE HPLC OVEN

Mylan,

1 5883

What is importance of pH in the Heavy metal test and How it effect on the test results?

 1760

which light is used in FT-IR spectroscopy

Hetero,

6 16181

Post New Analytical Chemistry Questions

Un-Answered Questions { Analytical Chemistry }

What is the formula for relative diffrence for standard solution in solution stability in validation?

314

Identify problem faced when mass spectroscopy is used with HPLC system ?

1389

what is diffrence between specificity and selecivity?

320

what is turbidimetric titration?Give 2 examples.

1992

what is impurity profile. how to interpret this impurity profile to a drug product or drug substance.

2210




why lactose has less charges when packed in steel containers when compared with packing of lactose in polyamide material?

1772

inhouse product is in capsule form in combination and RLD is in tablet form then can we proceed for multimedia CDP? in inhouse capsule product disso is paddle with sinker in release media is there then RLD product in tablet form then with same as paddle with sinker we can proceed n.a.?

296

why xterra column require to use at higher ph?

438

IS THERE ANY EQUIPMENT TO CHECK AND CALCULATE THE POLARITY OF A LIQUID?

1992

how to qualify the impurity?

328

if content uniformity passing but dissolution varrying then what is next step?

394

What is the accrptance criteria in RSD for RS method precision on basis of impurity percentages?

315

AT WHAT CONDITIONS WILL YOU ANALYSE A SAMPLE,WHICH ARE PRESERVED AT OTHER THAN THE AMBIENT CONDITIONS?(ie COLD STORAGE SAMPLES BELOW 20* CENTIGRADE?

1608

why require the ph, buffer during hplc mobile phase?

411

What is related substance by HPLC impurity limits as per USP?

559

For More Un-Answered { Analytical Chemistry } Questions Click Here