Formula liquid and method for rapidly detecting cations in electroplating wastewater
A technology for electroplating wastewater and detection method, which is applied in measuring devices, material analysis by electromagnetic means, instruments, etc., can solve problems such as unfavorable separation, and achieve the effects of improving separation effect, shortening separation time, and ensuring separation.
Inactive Publication Date: 2015-04-08
SICHUAN UNIV
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Embodiment 1
[0029] A formula solution for rapid detection of cations in electroplating wastewater, including imidazole 16mmol / L, glycolic acid 20mmol / L, tartaric acid 1.5mmol / L and 18-crown-6 1mmol / L, wherein the pH value of the formula solution at room temperature is 3.8.
Embodiment 2
[0031] A formula solution for rapid detection of cations in electroplating wastewater, including imidazole 14mmol / L, glycolic acid 18mmol / L, tartaric acid 2mmol / L and 18-crown-6 3mmol / L, wherein the pH value of the formula solution at room temperature is 4.0.
Embodiment 3
[0033] A formula solution for rapid detection of cations in electroplating wastewater, including imidazole 18mmol / L, glycolic acid 22mmol / L, tartaric acid 2.5mmol / L and 18-crown-6 2mmol / L, wherein the pH value of the formula solution at room temperature is 4.2.
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The invention discloses a formula liquid and a method for rapidly detecting cations in electroplating wastewater. In the formula liquid, imidazole is used as an ultraviolet chromogenic agent, glycolic acid is used as a complexing agent, and tartaric acid and 18-crown ether-6 are used as additives, so that the difference among the effective mobility of different cations can be increased, the separation rate can be ensured while the effective separation is realized, the separation time of cations is shortened, and finally, the baseline separation of eleven cations can be realized within 7min by combining an indirect ultraviolet detection method based on a high-performance capillary electrophoresis method, and thus the cations in a water sample can be accurately detected. According to the formula liquid and the method provided by the invention, the realization of the baseline separation of the eleven cations in a short time is a technical means which cannot be realized by adopting an existing separation or detection technology, and the technical means has the prominent substantive features and the remarkable progress.
Description
technical field [0001] The invention relates to the field of electroplating wastewater detection, in particular to a rapid detection method for cations in electroplating wastewater. Background technique [0002] The analysis and determination of free inorganic cations (especially heavy metal ions) in industrial wastewater has very important practical significance for human living environment and human health. At present, the commonly used method for the determination of inorganic cations is atomic absorption spectrometry (AAS), which has high sensitivity, but the equipment is expensive, the sample pretreatment is complicated, the analysis time is long, and each operation can only measure a single element, and cannot be used for multiple Components are determined simultaneously, and capillary electrophoresis technology can effectively overcome the above-mentioned shortcomings of AAS. [0003] Capillary electrophoresis (CE), also known as high-efficiency capillary electrophor...
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Inventor 郭勇
Owner SICHUAN UNIV