what is deference b/w the working standard and reference
standard

Answer Posted / vipul patel

Reference standard is primary standard.they are provid by Pharmacopoeia (like USP,Phone.Eur.JP etc).they no need other Qualifications
Working standard is Secondary standard .they make by Reference standard. They need other Qualifications like Assy,RS,LOD,

Is This Answer Correct ?    4 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

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

349


What is a difference between potency and purity?

632


if your product is soluble in 0.1n hcl and water then which you choose as media from these 2 media?

269


WHICH STANDARD WE USE IN SILICA ANALYSIS IN SILICA-GEL METHOD FOR SOLID SAMPLE

1609


is it necessary to do HPLC calibration at wavelength 315nm if we are doing analysis at this wavelangth

1652






How to do regeneration of Metacarb Pb plus column?

2071


how many types of balance calibration test?

1711


how can I make the copper get white bye any salt or acit?

1659


what is mean by peak intigrity?

329


Did anybody have method for acetyl cysteine effervescnce tablet

1806


Why only 1.2 million lux hours require in photostability study?

451


How to know the estimated LOQ concentration in ppm

723


How to start the dissolution development for unknown tab?

1133


why require to do water content for drug product?

308


why require the ph, buffer during hplc mobile phase?

394