Device for measuring trace metal element in water sample by using digital spectrophotometric method

Abstract

The invention relates to the field of analytical chemistry equipment and in particular relates to a device for measuring trace metal elements in water samples by using a digital spectrophotometric method. The device comprises a box body. The device is characterized in that a fluorescent lamp tube is arranged inside the box body; the fluorescent lamp tube is sleeved by a lampshade; a long-stripy window is formed in the lampshade; a moveable cover plate is mounted on the long-stripy window; an illuminometer probe is mounted on the other side opposite to the fluorescent lamp tube inside the box body; the illuminometer probe is externally connected with an illuminometer display; the top plate of the box body is a transparent top plate; a side plate on one side, opposite to the florescent lamptube, on the box body is a transparent side plate; other three side plates and a bottom plate of the box body are all made of a light-proof material; a sample zone is arranged on the top plate of thebox body; a photographing plate is fixed at the upper part right above the sample zone through a bracket; a photographing hole is formed in the imaging plate; and images can be acquired through the photographing hole by using a camera of a mobile phone or a digital camera. The device is simple in structure, convenient to use, and particularly applicable to sample pretreatment and rapid analysis and testing of metal ions in environmental water samples.

Description

technical field [0001] The invention relates to the technical field of chemical analysis equipment, in particular to a device for measuring trace metal elements in water samples by digital photometry. Background technique [0002] With the development of industry and science and technology, the pollution of chemical substances to drinking water has attracted more and more attention. When the metal ions in the water exceed the standard, it will have adverse effects on the human nervous system and blood. The content of elements are strictly limited. [0003] At present, the main methods used for the determination of trace and trace metal elements are atomic absorption spectrometry and spectrophotometry. The main problems of the above two methods are: 1. Large analytical instruments are required; 2. Sample pretreatment, detection and analysis The operation steps are cumbersome and complicated, not suitable for carrying and on-site analysis, and it is extremely inconvenient to ...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a digital photometer to solve the problems that the existing device for measuring trace metal elements in water samples is too large and inconvenient to carry, and the steps of sample pretreatment and detection and analysis are cumbersome and unsuitable for on-site measurement and analysis. Device for measuring trace metal elements in water samples

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