How much water sample volume is required to test for heavy metal residue?
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To test for heavy metal residue in water, various methods require different sample volumes. One method involves using a 100 mL water sample for testing heavy metals like Co, Ni, Cu, Cd, Sn, Pb, and Bi at sub-ppb levels . Another approach utilizes 50 mL of water sample for the simultaneous determination of ppb levels of Cd, Ni, Co, Cu, Bi, and Hg . Additionally, a study on laser-induced breakdown spectroscopy (LIBS) suggests concentrating heavy metals in water samples on hydrophilic graphite flakes before analysis, with detection limits of 0.029-0.125 mg/L for Cd, Cr, Cu, Ni, Pb, and Zn . Therefore, the required water sample volume for testing heavy metal residue can vary depending on the specific method used, ranging from 50 mL to 100 mL in the discussed research papers.
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| Papers (5) | Insight |
|---|---|
| The paper does not specify the exact volume of water sample required for testing heavy metal residue. | |
| 50 ml of water sample is needed to test for heavy metal residue using the developed method of solvent extraction as hexamethylenedithiocarbamato chelates followed by HPLC analysis. | |
| Around 20 mL of sample solution is needed for testing heavy metal residue using LIBS, as shown in the research paper on automatic sample preparation for heavy metal analysis in water. | |
| A 100 mL water sample is needed for testing heavy metal residues at sub-ppb levels using the developed method combining an iminodiacetate extraction disk with graphite furnace atomic absorption spectrometry. | |
| To test for heavy metal residue, 100mL of water sample is required for the measuring method of heavy metal Pb in waste water outlined in the research paper. |
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