High-sensitivity spectrophotometer
A spectrophotometer and high-sensitivity technology, which is applied in the field of colorimetric systems, can solve problems such as high detection limit, low sensitivity, and low detection concentration, and achieve the effects of extending the measurement length, improving measurement sensitivity, and reducing the minimum detection concentration
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[0017]The preferred embodiments of the present invention are described below, and the preferred examples described here are only used to illustrate and explain the present invention, and do not limit the present invention.
[0018]Such asfigure 1As shown, the high-sensitivity spectrophotometer includes a colorimetric system composed of a light generator, a colorimetric tube, and a light receiver.
[0019]In this embodiment, an optical glass tube is selected, which is a spiral transparent tube 7 with silver plated on the outside. A quartz tube can also be used to reduce interference and blank absorption. The experimental water is high-purity water with a resistivity>15M Euro*cm. The reagents are of analytical grade. In order to improve precision and accuracy, reagents with higher purity can be used.
[0020]The colorimetric system is composed of a cuvette inlet 4, a spiral transparent tube 7 and a cuvette outlet 5 connected in sequence. The cuvette inlet is provided with an exhaust liquid out...
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