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Shouldn't the stock solution above be 3.125 mg/ml?
Each of the four standards are different molecules
Discussions about sample preparation: extraction, cleanup, derivatization, etc.
chemist23 wrote:
The four standards were first dissolved in water 1:40 (w/v), then mixed 1:1:1:1 (v/v/v/v), filtered (0.45 µm) and finally diluted 1:1 (v/v) with acetonitrile to achieve a 12.5 mg/mL stock solution
Shouldn't the stock solution above be 3.125 mg/ml?
Each of the four standards are different molecules
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