For example : If I have powder sample wieght = 0.22 g , and I added 25ml of (8 Molar of HCl) and heated up until slight amount of liquid in the bottom of the baker.
after digestion sample weight= 1.08 g, then I added 10ml of distilled water, and finally I run it using MP-AES .
the instrument reading = 14.60 ppm of heavy element
so how much the element concetration in this sample?
Well, in the case of soil, sediment and biota samples, regardless the digestion step and acid (s) volume that will be used, you must transfer the remaining digested volume to volumetric flask and fill up to sign. In your case you have to repeat the work again. The dilution will be based on the concentration of predicted metals in the sample.
Concentration = Reading x Dilution factor/weight
=14.6 x 10/0.22
you need to confirm your ICP reading with calibration curve
Mr. Muhib,
what you mean by checking my curve result?
the instrument actually was calibrated with 3 standard range from 0.5, 3.5, and 7ppm
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