Answer Posted / chandra h

lod is to determine the total water content and volatile
substances present in the molecule.
KF is used to determine the water content.

In HPLC calibration, caffeine is used as primary standard for wave length calibration due to caffeine is having dual maxima at 273 & 205 nm and one minima at 245 nm. Any body can give reference of these details from any pharmacopeia (with chapter no.) or any other authentic guideline?

1964

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how you determine moist.of NaOH sol or NaOH flacks

2209

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what is difference between UV - VISIBLE MODEL NO like 1600,1601,1700 etc ? plz explain me

2665

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what is the difference between potentiometric titration and karl fischer titration?

3176

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why lactose has less charges when packed in steel containers when compared with packing of lactose in polyamide material?

2294

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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

6053

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From where require to take the RLD sample?

747

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What is mean by PDR?

934

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if rsd failed then what require to do?

822

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HI,I CLEARED BOB CLERK EXAM. MY INTERVIEW WILL BE ON 9TH OCTOBER,2010.PLEASE SEND ME INTERVIEW QUESTIONS AND ANSWERS. THANK YOU.

2228

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why require to do water content for drug product?

819

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What is the accrptance criteria in RSD for RS method precision on basis of impurity percentages?

816

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Please give idea about method development for cleaning method and how maco level establish

737

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Home heating oil or furnace oil what is made from? Can (base oil plus diesel/kerosen) = home heating oil?

2163

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how to selecet an exact coloumn for an new molecule development by hplc how to select exact salt as buffer for new molecule development by hplc what is the the process to select the mode of saparation of compoundes by hplc what is the use of ph of buffer what is use of buffer,ph,organic phase,ans methods how the molecules get saparated in coloumn,

2590

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