Sciences Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

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Sciences Interview Questions

Questions Answers Views Company eMail

1.What is the difference between method validation and method verification 2.Which guidelines proposed to method transfer

Granules,

1851

My question about gas chromatography sulfur chemiluminsecence detector. I test unknown sample gas by GC-SCD (calibrated ) and the result of *H2S is 279 PPM , *but when I test the same sample with the GC-TCD (calibrated ) the value of *H2S is 2500 PPM . I'd like to inform you that both GCs are calibrated and have very good operation conditions with stable parameters . the question is if the sample gas with higher H2S over detection limits of SCD detector (1000 ppm). why the result it 279 ppm Best regards

1596

How many lobes

Visionary RCM,

1 3212

what is peak purity and its formula

1 2394

Why potassium dichromate is used in calibration of uv?

1986

Why sometime potassium ortho phosphate mix with acetone use for sample preparation for hplc

1469

What is difference between known and unknown impurities

Sun Pharma,

1 2524

What is the difference between Assay and Purity?

1535

What is the difference between known and unknown impurities?

1 3168

Can we quantify bound water by KF titrator ?

1407

why we are using hexane in calibration of number of drop per mL

1737

Why we have to add 200mg Na2CO3 in preparation of 0.1N sodium thiosulfate solution?

1577

what is the protein : RNA ration in eukaryotic ribosomes ?

1 1905

how to convert potency from on anhydrous basis to on dried basis?

1645

Why to use propyl paraben in HPLC gradient calibration

Glenmark,

7482

Un-Answered Questions { Sciences }

Name three aquatic mammals?

965

How do I know which toothpastes choose to use?

815

What is the main difference between a bird heart and a mammalian heart?

881

why sre you used Potassium hydrogen phthalate in standarisation of 1N NaOH and 0.1 N Perchloric Acid?

9797

How we can identify process related and degradation impurity in single method with short period?

817

From which germ layer do the epidermis and the nervous system originate? What are other organs and tissues made from that germ layer?

Describe two different sensory receptor cells, with respect to the locations and the mechanisms of this amplification?

1722

What is cell-mediated immune response?

381

hi, i want last 10 years ongc exam recruitment papers for subject in chemistry ,genaralknowladge.

2803

What is future scope to BAMS(Ayurveda)

4354

Why ph scale range is 14? Why it is not less or not greater than 14? Solution of hcl or hydrogen containing liquid has a ph. But if the solution is kmno4 here nothydrogen power does it ph?

1177

can any one give me the question bank for Lab Technician am going to appear for my HAAD exam on the 29/4/10. Please send me the Qs. my mail Id is petula_dsouzaa@yahoo.com Please help. thks.

2630

Do all vascular plants develop annual rings?

975

Give procedure for Separation of dead cells from cultures ?

1857

How to isolate prokaryotic mRNA

2439

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