High-sensitive multifunction analyser based on back light scattering technology

Abstract

This invention discloses a high keen multi-purpose analyzer based on after to the light scattering technology, composed with probe, the photosource part by the examination, the signal examination and the enlargement part and the demonstration partial constitutions. The examination probe, is composed by the abundant fluid vessel and the signalling optical fiber group, a signalling optical fiber group shines the optical fiber group for the laser, another group for the examination signalling optical fiber group, two groups of optical fibers and in the same place, from probe in the foundation insertion by the angle, two groups of optical fibers distinctions coupling on the semiconductor laser photosource and the signal examination and the amplifier, forms 180 after to the light scattering analysis examination system. The signal examination and the enlargement partially uses the silicon photoelectric generator. After this invention because has used nearly 180 to the light scattering technology, may achieve to the many kinds of material low density keen examination, structure the simple, can realize the on-line examination.

Description

technical field [0001] The invention belongs to a light scattering detection instrument, in particular to an instrument for measuring content using a nearly 180-degree backward light scattering detection probe, which can be used for the determination of sulfate ions, chloride ions, heavy metal ions, etc. in water, biological macromolecules (such as nucleic acid , protein, etc.) analysis, drug analysis and sensitive determination of solution turbidity (such as tap water, river and lake water, beer, pharmaceutical water, etc.). Background technique [0002] The usual light scattering research mainly focuses on the detection of 90-degree light scattering signals, and the research on backscattering also belongs to small-angle backscattering. Right-angle scattering and small-angle scattering techniques can be used for sensitive determination of macromolecules and other substances, but there are still shortcomings. 1. Insufficient sensitivity. Due to the weak scattering signal o...

AI Technical Summary

Problems solved by technology

1. Insufficient sensitivity

Due to the weak scattering signal of some objects to be detected with low content, it cannot be detected by traditional right-angle scattering or small-angle scattering, and the detection sensitivity is limited

2. It is not conducive to the miniaturization of sensors

3. Not conducive to online determination

The sensitivity of the residual chlorine detector in tap water is not high. Among the current conventional chlorine detectors, the highest sensitivity is only 10ppb.

And most of the instruments are single-function

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