In general, liquid-liquid extraction is applied where alternative separation technologies such as distillation are uneconomical, or even unsuitable. Typical examples: Simultaneous separation of ...
The SCAN function is best used when you need a running total—a sum that accumulates row by row, with the accumulated value ...
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Excel's Custom Data Validation: A Trick You Didn't Know You Needed
If you've used data validation in Excel before, you probably selected the relevant cells, clicked "Data Validation" in the ...
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