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Analytical Chemistry Interview Questions
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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.?

9

Ph meter can show more than 14 ph reading? Why ph range in between 1 to 14 only?

9

How to set specification of assay, fisdolution and related substances?

14

how to qualify the impurity?

8

what is the acceptance criteria for enteric coated tablets in 0.1n hcl validation in each parameter?

23

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

17

How require to perform linearity as per ANVISA? What are the acceptance criteria?

12

[3/30, 13:29] Manoj P Venkatpurwar: How hplc column selection according to structure? How mobile phase buffer selection on molecule structure?

15

in DMF having extra impurities and in api COA also having extra imp than USP or BP product then how require to proceed?

10

we can use expired sample for validation and analyst qualification?

12

If vendor having more imp than monograph then how to proceed? and how to set spec?

9

If change in specification which parameter require to do for validation? if change in chromtographic condition then which parameter? if api change then which parameter? if change composition then which parameter? if old method not work out then whicj parameter? if additional one impurity added then which parameter of validation require to do on above each conditions? elaborate separately

13

how require to set assay concentration for standard and sample?

11

What is dose dumping? why require to do?

10

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

16


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Un-Answered Questions { Analytical Chemistry }

From where require to take the RLD sample?

14


in which situation ion pair require to use?

8


how require to interprit the method precision data of hptlc?

7


Which are the diffrent grades of api in pharma?

13


what is third integration

1259








1556


How can I develope method of dissolution by HPLC OR UV

1644


Why use only methanol,used determinationof moisture content not use other solvents

474


why we are using benzene, anyline in acetic anhdride assay titration method?

1325


what is procedure of actual procedure for registration of drug?

1181


what is the origin to prepare standard operating procedure

1520


Tell me about analytical method validation in QC

4380


What is column in chromatography?

1393


WHAT IS THE USE OF STARTER ?????????

1630


how much mass should be there in volumetric flask while in preparation of sample for assay? 

1805