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Objective To study the automatic iodine analyzer to detectthe content of iodine in urine, so as to provide a scientific andefficient method for the majority of urinary iodine detection workers. Methods The linear range and correlation coefficient, detection limit,precision and accuracy of the method were tested to understand thefeasibility of the method. Results The linear range of this method is $0 \sim {400}\mathrm{{\mug}}/\mathrm{L}$ , the linear equation was $\lg A =- {0.0014C}+ {0.0013}$ , thecorrelation coefficient(r)was 0.9998, and the Limit of Detection (LD)was ${3.9\mu }\mathrm{g}/\mathrm{L}$ ,the relative standard deviation (RSD) was ${2.7}\%\sim {4.3}\%$ ; the detectionresults of low and high concentrations of urinary iodine referencematerials were in the range of uncertainty; 50 urine samples of pregnantwomen were randomly selected for iodine determination. By comparing theautomatic iodine analyzer with the manual method, the relative deviationof the results is $-{9.9}\%\sim {12.8}\%$ , which meets thequality control requirements of the National Reference Laboratory foriodine deficiency disorders for 3 consecutive years, he participated inthe national external quality control examination of IDD laboratoriesand passed all of them. Conclusion The linear range, correlationcoefficient, detection limit, precision and accuracy of the method aresatisfactory, and the method has a high degree of automation, reducingthe detection time and the workload of the staff, at the same time, ithas advantages in toxicity and waste disposal, so the automatic iodineanalyzer method is suitable for the determination of iodine in urine,especially for the detection of large-scale urine iodine, suitable forpopularization.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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