Answer Posted / falguni patel

Dipole moment change means change in magnitude of +ve and -ve charge between two bonded atoms. To alter the dipol moment stretching or bending vibration is necessary. There is no these types of vibration is found.

what is difference in ods I ods II is this is realy from sorbent / packing characteristics or from other means

1924

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What is the main difference between ODS1 and ODS2 Hplc column.

5130

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

860

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How to determine the EDTA content by potentiometry titration in Ceftriaxine sodium

2490

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could negative ions be produced by bombardment process in mass spectrometry?

1725

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What is dose dumping? why require to do?

874

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USP methodology, EP methodology, IP methodology, among three if possible to use one methodology for qualify working standard to use USP, EP, IP ? Please explain...

1971

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Why do we use KMnO4 in the test of control of obsorbance ? and why do we take specific quantity i.e 57-63mg?

2780

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what is mean by peak intigrity?

868

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

1031

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For standardization of volumetric solutions, acceptance limit for concentration is considered as 10% of nominal concentration and %RSD as NMT 0.2% (for appropriate no. of replicates). But , if %RSD has not met, what should be further action?

1843

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

9699

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when we talk about change in entropy we consider total entropy means of surround +entropy of system but when we talk about change in Gibss free energy we consider entropy of system.explain with reason.

1989

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for heavy metal test lead used in which form pure form or any other form for preparation of lead standard sol

5995

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how require to select dissolution media? what is discrimination?

747

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