Why we use caffeine for HPLC calibration in Detector wave
ength accuracy test

Answer Posted / ch prasad drl

1 IT DETECT A MULTIWAVELENGTH 1.205 2. 273 3. 245.
2 AND IT IS PRIMARY REFERENCE STANDARD.
3 IT IS VERY STABLE
4 IT IS VERY EASIY AVAILABLE IN MARCKET
5 IT IS CHEAP.

Is This Answer Correct ?    1 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

in dissolution why pool sample needed? in which type of drug pool sample need?

2600


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?

1260


what are the standard methods for HPLC?

2250


In Dissolution Test why limit is define Q+5% what is the role of +5%.

2585


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

1634






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

8928


in api coa contains only process impurities and in product coa contains degradation impurities?

325


Did anybody have method for acetyl cysteine effervescnce tablet

1816


why xterra column require to use at higher ph?

440


how we can identify the impurity is coming below loq at transfering site?

391


Why dissolution test is not performed in all of the products

2044


If combination product how require to identify which imp is of which api?

328


what is the principle involved in turbidometry and nephelometry ?

3640


which are the diffrent batches in the pharmaceuticals?

353


If inhouse hplc related substance method is completly diffrent from Usp for finished proďuct with diffrent impurities then how require to prove method equivalecy?

322