Portable elemental analyzer applicable to field exploration and detection method thereof

Abstract

The invention discloses a portable elemental analyzer applicable to field exploration, comprising a sample feeding system, an electrolyte discharge plasma generation system, a light path collecting and light filtering sorting system, a data processing system and a control system; the sample feeding system diverts a sample into the electrolyte discharge plasma generation system to emit an elemental spectrum by glow discharge, the light path collecting and light filtering sorting system acquires and transmits the spectrum to the data processing system, and the control system performs displaying and acquiring finally; the control system controls the sample feeding system, the electrolyte discharge plasma generation system, the light path collecting and light filtering sorting system and the data processing system. The invention provides a metal element analyzer free of advanced sample acidifying or gas carrying, more stable in discharge, simple to operate, low in price and small in size. A detection method of the invention enables automatic detection, and is simple to perform and high in field adaptability so that field detection speed and precision are greatly improved.

Description

technical field [0001] The invention relates to a metal element analysis device, in particular to a small-volume, low-cost, and easy-to-operate portable element analyzer and a detection method for on-line detection of liquid samples. Background technique [0002] In the detection of metal elements in water, traditional detection methods such as complexometric titration, electrochemical method, inductively coupled atomic emission spectrometry, etc. often have one or another defect and deficiency. The operation is complicated and it is difficult to realize the real-time and continuous detection of metal elements in water. The electrolyte glow discharge technology that has emerged in recent years can just make up for these shortcomings. Its basic structure is as follows: the electrolyte solution is led out through one end of a vertical conduit through the sampling device to form a fountain, and a certain positive voltage is applied near the lead-out end with a metal electrode t...

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Problems solved by technology

[0003] However, for the current research on electrolyte glow discharge technology, the spectral detection part is collected and processed by spectrometers, such as a combined spectrometer using a monochromatic spectrometer and a photomultiplier tube as a detector or a portable spectrometer. Large volume and high cost reduce the portability of metal ion detection instruments based on the principle of electrolyte glow discharge, thus limiting the widespread application of electrolyte discharge photoelectric detection technology

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