i. Reaction Cuvette Rinsing Movement Sequence
figure 3-3 Reaction cuvette rinsing probe position
Above figure shows that 8 steps are needed when rinsing reaction cuvette. (3 times cell blank test
is added) , therefore, to finish rinsing one reaction cuvette, 12 steps are needed：
ii. Optical measurement movement sequence
Photometry in the entire process is adopted. In 13-minute reaction time, the continuous
determination of the absorbance of reaction solution is carried out. Reaction disk rotates 1 plus 2
pitches, about 15 seconds, absorbance values are measured out when the 120 reaction cups passing
optical axis of the photometer one by one.
Each reaction Cup in 3-minute reaction time was measured 12 times (12 photometric points),
4-minute reaction time was measured 16 times (16 photometric points), 5-minute reaction time
was measured 20 times (20 photometric points), 10-minute reaction time was measured 40 times
(40 photometric points), 13-minute reaction time was measured 49 times (49 photometric
points).
Light starting from the light source was focused by the lens, and passed the reaction cup first, and
then was disparted by concave grating. After spectrophotometry, each wavelength were received
by 12 fixed photoelectric sensors simultaneously, and were amplified 12 amplifiers, after Log
transformation to derive the rate of change of absorbance or absorbance. When dual-wavelength
testing is used, the concentration value is calculated by the difference of the main and
sub-wavelength absorbance or that of absorbance change rate, and therefore dual-wavelength
testing can not only compensate the blood lipid, hemolytic, jaundice sample test, but also
compensate on the result impacted by voltage changes, so that measurement is more accurate,
more stable.
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Reaction disk rotate direction
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