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Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

tell me about aliphatic acid estimation by hplc which columns can we use

Dr Reddys,

1 3578

does water content by KF will calculate only external moisture absorbed or the ligand ? (for ex copper sulphate pentahydrate)

NA,

1910

Why we perform the ir analysis?

Sequent,

3 5009

difference between calibration and validation

Mylan,

2 5070

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

2298

Data was integrated with RRT CONCEPT OR Overlay with SSTchrmatogram concept which is better?

1 3206

what is the difference between qualitative analysis and quantitative analysis and explain them?

Dr Reddys,

1 3329

why disodium tartarate used in karl-fischer instrument ?.

Dishman,

1 2909

why does used dry caffien in HPLC calibration?

Dishman,

2032

Why we don't add Hcl, HNO3, H3PO4 in residue on ignition, why we add H2SO4

1 3989

What is gelatinization?

Nestle,

1618

What is FFA, PV, and PAV value in oil.

Nestle,

1 4103

Why we check moisture,ash & AIA in product

1881

When recording an IR spectrum in the lab, we take no special precautions to account for the presence of oxygen, nitrogen, or argon in the air. What are the consequences of this?

1 2653

about method developement in hplc

1716


Post New Analytical Chemistry Questions

Un-Answered Questions { Analytical Chemistry }

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

2456


why octanol used to determine the partition coefficient ?

2458


Why perchloric acid used for potentiometric titration

2683


How to do regeneration of Metacarb Pb plus column?

2580


which situation gc hs and gc als require to use?

789


What is the difference between spectro meter and spectro photo meter?

11511


Which type of column should i use to check the purity of high molecular weight protein using HPLC reverse phase column chromatography? Hi everyone. I wanna to check the purity of high molecular weight protein (collagen) with MW of ~130 kDa using a HPLC. I know C18

1915


mahagenco syllabus for the post of chemist

6476


function of detecter in hplc ,gc and spectroscopy? function of carrier gas in gc?

2669


how decide the clining method and cleaning method validation require for this perticular products?

755


why does used dry caffien in HPLC calibration?

2032


What is column in chromatography?

2235


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

836


If we have 5 strength which is not dose proportinate and excipients also diffrent in each strength then how we can proceed for Force degradation? and excipient are same but not dose propotinate the how FD?

800


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?

4073