Measurement of heavy metals in a water body environment by utilization of flame atomic absorption spectrophotometry
A flame atomic absorption and spectrometry technology, which is applied in the measurement of color/spectral characteristics, etc., can solve problems such as human toxicity, and achieve the effect of easy operation.
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[0009] Utilize flame atomic absorption spectrometry to measure heavy metals in the water body environment. It is characterized in that, collect the sample to be tested, put the sample into the digestion tank, add 5mL concentrated hydrochloric acid, 5mL hydrofluoric acid, 5mL perchloric acid, mix well, put the digestion tank into Put into the digestion apparatus, digest for 20min, dry and cool, transfer the solution into a 50mL volumetric flask to constant volume, shake well, filter into a colorimetric tube, and use a flame atomic absorption spectrophotometer to compare with a blank sample for analysis. The sample to be tested is collected by taking a water sample and filtering to remove impurities. The method is used to determine the content of zinc, chromium, lead, copper or cadmium in the sample. The standard curve measurement of the method: accurately pipette the heavy metal standard mixed solution with gradient concentration into a volumetric flask, dilute with hydrochloric...
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