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Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

How can we detect a compound in hplc which does not have any chromofore?

1 2384

What is similarity factor?

1148

What is the difference between the working standard and reference standard?

1 2102

WHAT IS THE PARAMETER FOR THE SELECTION OF MOBILE PHASE IN HPLC?

1137

CAN WE DETERMINE THE PEAK PURITY IN GAS CHROMATOGRAPHY ANALYSIS?

1152

How to do spike of aflatoxin in peanut to get maximum recovery

1065

How to fix the sample conc. in Related substances test by HPLC?

1030

What is the limit for single maximum impurity limit as per USP??

1 1914

Why we use potassium dichromate in uv calibration Exact reason behind it??

1190

UV and PDA detector, which have less signal to noise ratio?

1084

Difference between the quantitative analysis and qualitative analysis?

1107

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

1035

What is a difference between potency and purity?

1156

Why we select scan range from higer wavelength to lower wavelength in uv visible spectroscopy and ftir spectroscopy ? .

856

In the HPLC Calibration done wavelength accuracy done between 200nm-280nm .but not done remaining 300-400nm not done ?

860


Post New Analytical Chemistry Questions

Un-Answered Questions { Analytical Chemistry }

How to calibration of the uv spectroscopy and its test?

1144


In GC calibration,what is the procedure to calibrate the TCD (thermal counductivity detector)suggest ?

3121


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

760


in which situation ion pair agent require to use?

679


How do we quantify crystaline and amarpous forms by using (NMR, XRD)spectroscopic techniques? Which any others instruments are useful for this quantification? explain

2341


effect of pore size, pore volume, partical size, column length, carbon load on retention time? what is carbon load? what is the use?

851


before starting analytical method valodation what you checking? and how giving preference to start validation?

752


CAN WE DETERMINE THE PEAK PURITY IN GAS CHROMATOGRAPHY ANALYSIS?

1152


mahagenco syllabus for the post of chemist

6429


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

705


What if impurity area in control sample coming more as compared to LOQ level of impurity ?

1557


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

689


if tech transfer fails whay require to do?

777


How you develop a method in HPLC?

2565


Explain the relations between number of carbon atoms in alkanes and retention time ?

2074