Answer Posted / dinesh solanki

Conductivity measure the water's ability to conduct
electricity.which provides measure of what is dissolved in
water.

what is the purge flow & how to calculate

2730

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if instrument calibration fails then what require to do?

1018

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calibrtion procedue of LC-MS

2760

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How can we calculate offset value pH measurment

1556

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What is the calibration of uv process and preparation

2045

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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,

2653

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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?

3584

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Why acetonitrile and water are used as extraction solvent when analysis melamine? I thought they are miscible and won't be able to separate...

1752

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if you given one product then which tests you will perform?

749

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What is the difference between spectro meter and spectro photo meter?

11618

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UV and PDA detector, which have less signal to noise ratio?

1177

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How you develop a method in HPLC?

2667

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Why we select scan range from higer wavelength to lower wavelength in uv visible spectroscopy and ftir spectroscopy ? .

982

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What is viod volume and peak purity in HPLC?

2935

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In the HPLC Calibration done wavelength accuracy done between 200nm-280nm .but not done remaining 300-400nm not done ?

975

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