| Explanation： | | | The soil ulmin is the nation measured that the earth formula applies fertilizer one which of analysis projects the project request must determine completely, uses the oil bath heating potassium bichromate oxidation - capacity law to complete 4000 soil samples with difficulty in the short time the determination duties. for this reason, the Shandong Province Chengwu County bureau of agriculture clay fertilizer stands in view of speeds up organic matter determination speed this question, convenes many times analyzes the personnel to carry on the discussion, under the guarantee chemical examination quality's premise, how to improve the chemical examination speed to take an important topic to carry on the repeated test, to study and to obtain successfully. They have carried on the conventional oil bath method the innovation, independently developed has been able one time to disappear boils 96 samples to disappear boils the frame, and tried to find out a set simple, the quick test method which adapted with it. their main innovation is: has purchased the HH-Y8 constant temperature oil-bath which a Jiangsu Jintan positive radical instrument Limited company produces, and according to its specification, independently designed processes one to disappear boils the frame, should disappear boils long 55cm, to extend 23cm, high 9.5cm, formed a complete set with the oil-bath. Disappears boils in altogether 96 hole, each Kong Ke puts a test tube (25×200mm), namely each time may put 96 test tubes, causes to disappear boils the speed to speed up greatly, the coordinate completely automatic zero alignment burets the replenishment reagent and the titrate, has realized the organic matter chemical examination batching fast. uses should disappear boils and the necessary test method determination soil ulmin, surpasses traditional obviously the routine analysis method, mainly displays in: one is safe, will appear with the sand-bath law when will put, will take the flinty test tube easily to occur scalds, will disappear with the gabion boils the oil temperature to control, easily to have fire's situation with difficulty. two are accurate, compares with the conventional method to the standard substance test result, the accuracy is high. three are fast, because each raid may process 96 samples, unifies burets the replenishment reagent with the completely automatic zero alignment and the titrate, 3 analyze personnel one day to be possible to make 3 batch, may enhance above 5 times compared to the conventional method chemical examination speed. four are practical, should disappear boils a design to be simple, to be reasonable, generally the county level laboratory can provide. At present, Chengwu County will have been supposed to disappear boils frame's technical declaration national monopolies and so on design.
（成武县农业局） |
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