Answer Posted / nishabd

KBr is inert it doesnt react with the sample to be analysed...it helps in better resolution of the peaks as it doesnt show absorbance in the IRregion..it is highly stable, so the background scanned once can be used for a longer duration of analysis(i.e:until many containers of a batch for example)

how require to set assay concentration for standard and sample?

923

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what is the purge flow & how to calculate

2648

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What is the formula to determine the concentration of M of a solution given the % transmittance? Use %T = 43.7 as an example.

2687

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What is column in chromatography?

2238

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pharma industries oriented

2247

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What is viod volume and peak purity in HPLC?

2884

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

873

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What is split ratio in Gc? Splitless? how requirr to select?

892

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

826

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Ph meter can show more than 14 ph reading? Why ph range in between 1 to 14 only?

741

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if rsd failed then what require to do?

838

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Which products will produce when acetic anhydride reacts with Ter-butanol, Sec-butanol, Iso butanol, Dimethylamine etc.

2865

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in DMF having extra impurities and in api COA also having extra imp than USP or BP product then how require to proceed?

837

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how you determine moist.of NaOH sol or NaOH flacks

2222

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CAN WE DETERMINE THE PEAK PURITY IN GAS CHROMATOGRAPHY ANALYSIS?

1210

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