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A technology of heavy metal ions and detection methods, which is applied in the field of detection of heavy metal ions in water quality, can solve the problems of water sample influence, error in detection results, and vulnerability to the influence of water quality distribution, and achieves the effect of increasing detection efficiency and rapid detection.
Active Publication Date: 2020-04-10
武汉俊德环保科技发展有限公司
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[0005] Aiming at the deficiencies of the prior art, the present invention provides a method for detecting heavy metal ions in water quality, which solves the problem that when sampling water, it is often simply sampled in the shallow, middle and deep layers, and th
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[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0029] see Figure 1-2 , the embodiment of the present invention provides a technical solution: a method for detecting heavy metal ions in water quality, comprising the following steps:
[0030] Step 1. Extraction of test water: Take ten cleaned and sealed test tubes to the test water area, and draw water twice in the shallow layer, middle layer and deep layer respectively, and then stir the water flow to mix the water of different de...
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Abstract
The invention discloses a water heavy metal ion detection method. The method comprises: step 1, detection water extraction: taking ten cleaned and sealed test tubes to a detection water area, respectively taking water twice in a shallow layer, a middle layer and a deep layer, and then stirring the water flow to mix the water of different depths. The invention relates to the technical field of heavy metal ion detection. The invention discloses the water heavy metal ion detection method, during detection, sampling is carried out at multiple points, during sampling, water is taken from the shallow layer, the middle layer and the deep layer twice, then the water flow is agitated to mix the water at the shallow layer, the middle layer and the deep layer, then water is taken from the surface layer and the middle layer respectively for two times, water is taken at multiple points, so that the detection result is more precise, the detection error caused by the environmental factor is substantially reduced, the water sample is stored at the same temperature of the water body at the water taking position, the inaccurate detection result caused by the external temperature change is prevented,and the detection precision is increased.
Description
technical field [0001] The invention relates to the technical field of heavy metal ion detection, in particular to a detection method of heavy metal ions in water quality. Background technique [0002] Heavy metals refer to metals with a specific gravity greater than 5, and heavy metals refer to metals with an atomic weight greater than 55. For example, the atomic weight of iron is 56 and greater than 55, so it is also a heavy metal. There are about 45 kinds of heavy metals, generally belonging to transition elements, such as copper, lead, Zinc, iron, cobalt, nickel, manganese, cadmium, mercury, tungsten, molybdenum, gold, silver, etc. Although heavy metals such as manganese, copper, and zinc are trace elements required for life activities, most heavy metals such as mercury, lead, cadmium It is not necessary for life activities, and all heavy metals are toxic to the human body if they exceed a certain concentration. In addition, although arsenic is not a heavy metal, its sou...
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