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Organic Chemistry (342) - Inorganic Chemistry (123)
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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
1 6076we run the same sample in same method in different flow rates in HPLC,any changes in sample analysis?
2 7536For limit test of heavy metals in BP, Method C require that the substance is ignited at a temperature not exceeding 800 °C. Why confines such the temperature?
4085For titration in anhydrous media with perchloric acide, if lack of titrator, Which indicator is been used for replacement. How calculate pH of test solution to choose suitable indicator?
2320
Sr-90, a radioactive isotope, is a major product of an atomic bomb explosion. It has a half life of 28.1 year. Calculate the first order rate constant for this nuclear decay and the fraction of 90Sr that remains after 10 half lives?
However ozone is heavier than oxygen still ozone is up there in sky why?
Is benzene aromatic?
What is the diference between residual solvents and organic volatile matter
how pda detector works over uv?
if identification threshold crosses the limits then what next step?
why we use a particular hplc column for a particular compound give reasons?please
why is mgcl used in edta titration
In Dissolution Test why limit is define Q+5% what is the role of +5%.
Protactinium-231 emits alpha particles. How can this property be utilized in radiation detectors or other scientific instruments?
what is stero electronic factor.2 what is steric control factor and what is product control factor
is it necessary to do HPLC calibration at wavelength 315nm if we are doing analysis at this wavelangth
how do you make a amine sugar
What is the unit of ph?
Active Ingredients in septilin ??
