Golgappa.net | Golgappa.org | BagIndia.net | BodyIndia.Com | CabIndia.net | CarsBikes.net | CarsBikes.org | CashIndia.net | ConsumerIndia.net | CookingIndia.net | DataIndia.net | DealIndia.net | EmailIndia.net | FirstTablet.com | FirstTourist.com | ForsaleIndia.net | IndiaBody.Com | IndiaCab.net | IndiaCash.net | IndiaModel.net | KidForum.net | OfficeIndia.net | PaysIndia.com | RestaurantIndia.net | RestaurantsIndia.net | SaleForum.net | SellForum.net | SoldIndia.com | StarIndia.net | TomatoCab.com | TomatoCabs.com | TownIndia.com
Interested to Buy Any Domain ? << Click Here >> for more details...

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

Answer Posted / ravindra surdikar

Caffeine gives multiple wavelength responce
i.e. 205nm,245nm & 273nm
and it is stable and not degradable for a long time.

Is This Answer Correct ?    4 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

analytical method validation require to with respect to release specification or shelf life specification?

734


how require to fix the linearity and accuracy cincentration range?

1577


how to get accurate result for Residue on evaporation in purified water

1582


what is mean by ambient temperature?

865


in monograph 7 imp are there but in vendor showing 5 imp do not req to include 2 imp for that what will be justification?

667


what is the origin to prepare standard operating procedure

2249


What is importance of pH in the Heavy metal test and How it effect on the test results?

2222


I have compare C2H2-air and C2H2-N2O flame AAS on determination calcium. Both use same range of std to plot calibration curve. (2-6ppm) When i measure the sample with phosphate, KCl and LaCl, C2H2-N2O flame give false positive result, around 0.5ppm. When i measure the sample with phosphste, KCl and EDTA. C2H2-N2O flame also give 0.5ppm false positive. But both above mentioned sample would not give false positive when measured by C2H2-air flame. What is the reason?

3488


If change in specification which parameter require to do for validation? if change in chromtographic condition then which parameter? if api change then which parameter? if change composition then which parameter? if old method not work out then whicj parameter? if additional one impurity added then which parameter of validation require to do on above each conditions? elaborate separately

798


what you do when compound having dwel wavelength?

704


What is the Formula for coreletion coefficient in plhplc calibration

1775


how will you do the prep for unstable componds?

1976


What is intact assay method development.....?

2559


How can we calculate "confidence interval" in analytical method validation? Pl. explain with example.

4152


2. Two grams of Benzoic acid are dissolved in 200 ml of water and extracted with 200 ml of diethyl ether. The distribution coefficient of benzoic acid is 100, and its dissociation constant is 6.5 10-5. Calculate the distribution ratio (D) of benzoic acid at pH 2, 5, and 6. 3. Calculate D at pH 2 to 10 (1 unit apart) in the above problem, and plot D versus pH.

2173