Abstract: A waterproof housing structure for portable optical analyzer mainly comprises a hard upper casing, a lower casing and a fastening element. The hard upper casing contains an outer rim and an inner rim. The lower casing contains a hard inner shell and a pliable cap. The hard inner shell has a trapezoidal rim which has a first trapezoidal surface and a second trapezoidal surface lower than the first trapezoidal surface. The pliable cap wraps a portion of outer surface of the hard inner shell, and has an outer edge and an inner edge mating the upper casing. The fastening element fastens the hard upper casing to the lower casing. Thus the two irregular rims and edges can be coupled to prevent liquid permeation. Fabrication and assembly during production or repair and maintenance are simpler. It also improves grasp feeling and anti-slipping effect on the handgrip of the portable optical analyzer.

Abstract: A waterproof housing structure for portable optical analyzer mainly comprises a hard upper casing, a lower casing and a fastening element. The hard upper casing contains an outer rim and an inner rim. The lower casing contains a hard inner shell and a pliable cap. The hard inner shell has a trapezoidal rim which has a first trapezoidal surface and a second trapezoidal surface lower than the first trapezoidal surface. The pliable cap wraps a portion of outer surface of the hard inner shell, and has an outer edge and an inner edge mating the upper casing. The fastening element fastens the hard upper casing to the lower casing. Thus the two irregular rims and edges can be coupled to prevent liquid permeation. Fabrication and assembly during production or repair and maintenance are simpler. It also improves grasp feeling and anti-slipping effect on the handgrip of the portable optical analyzer.

Abstract: The present invention relates to a non-enzymatic disposable uric acid detecting electrode strip which directly detects the concentration of uric acid in liquid sample under a low operation voltage of below 400 mV and pH value from 7.0 to 10.0. When the electrode strip is applied to detect the concentration of uric acid in human body, it avoids interference signals caused from any other components in blood and will not be interfered by ascorbic acid unless the concentration of ascorbic acid increases to 15 times of its normal concentration in blood. Not only serum but also whole-blood can be taken as a sample for detecting the uric acid concentration thereof. The uric acid detecting electrode strip is modified by a water soluble redox electron mediator. The electrode strip is easy to carry and can be easily made, particularly mass-produced.