This study aimed to measure the cattle creatinine in the urine of children exposed to secondhand smoke by Direct barbituric acid when measured concentration of cattle creatinine standards 2, 5, 10 and 15 μug / ml. The precision in the measurement of the cattle standard creatinine concentration 2 ug / ml and 15 ug / ml is the% CV is ....% and ...%, respectively, and was used in the DETBA. detection of creatinine in cattle urine of smokers and non-smokers. Found that non-smokers have the Coast Capri average .... ug / ml, and those who smoke are Coca average creatinine ug / ml, so the measurement of cotinine. This can be used to distinguish smokers. Exposure to tobacco smoke is of no smoking. You can also tell the concentration of creatinine in urine of cattle can also report the results of quantitative analysis quickly and accurately.
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