Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

why sucrose is used for polarimeter calibration

Sun Pharma,

4 31120

why 0.005 M sulphuric acid is used to calbrate spectrophotometer and why caffiene is used for calibrating hplc

Torrent Pharma, GVK,

2 16009

why we use caffeine for hplc calibration?

5 15986




what is polarity and how to calculate

Reddy Labs,

2 8598

How to calculate the maximum loaded sample concentration in HPLC column?

2 7684

What is the difference between HPLC and GC?

3 15401

Why linearity of detector performed in HPLC calibration

Cipla, Intas,

2 11353

how to start the method development of Dissolution and related substances.

Apex,

1 8534




what is the criteria for choosing capillary column in GC??is it dependent on sample load?

2 4517

When we calculate Impurity against impurity std.solution and when we calculate impurity against diluted standard with applying RRF?

Torrent Pharma,

2 7964

What is discriminating media? How can u justify/select that which media (pH etc...)is suitable for your dissolution study of your compound?

Natco, SUN,

5 21371

What is the difference between Discriminating media and DPDM(Dissolution Profile with Different Media)

Natco,

5436

How can I develope method of dissolution by HPLC OR UV

996

Give me details about dissolution , with name ?

EPCA,

1 1548

As per USP what is RSD limit of volumteric solution of three replicate analysis

Orchid,

10 16200


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Un-Answered Questions { Analytical Chemistry }

We use hicrome 10 cxs column in hplc analysis....pls tell me.. what is the meaning of 10 cxs?

299


What is aggregate and fragments in SEC?

677


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

979


WHICH STANDARD WE USE IN SILICA ANALYSIS IN SILICA-GEL METHOD FOR SOLID SAMPLE

892


Why potassium dichromate was using in Uv calibration?

518






What is the calibration of uv process and preparation

723


why does used dry caffien in HPLC calibration?

620


In HPLC (Waters) software Empower1,2 &3 what is the updation for each version

1458


How can we calculate offset value pH measurment

235


why we should take dst factor for below 1%moisture samples

1442


why octanol used to determine the partition coefficient ?

1007


How can I develope method of dissolution by HPLC OR UV

996


in gas chromatography what is the difference between gas flow rate and average linear velocity ?

1036


what are the standard methods for HPLC?

1531


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

1092