The determination of urine iodine Part 2: inductively coupled plasma mass spectrometry

The national health and family planning commission of the People's Republic of China

The 2016-05-17

Iodine is maintaining normal physiological activities of human body essential trace element, participate in thyroid hormone synthesis, and is closely related to the growth, metabolism of the body. The insufficient intake can produce different degree of iodine deficiency disorders, eating too much will cause harm to people's health, such as those that cause high iodine goiter and iodine poisoning or iodine allergy, etc. Iodine is mainly through the kidneys, in the body from the eduction in urine, urine iodine content reflects the comprehensive crowd iodine nutritional status.

Past the urine iodine testing mainly adopts the arsenic cerium catalytic spectrophotometry, the method applied by the reagent arsenic trioxide is a highly toxic control reagent, on the one hand, strict management, on the other hand, testing personnel to bring certain harm to the environment. Inductively coupled plasma mass spectrometry technology has the advantages of rapid, sensitive, wide linear range, the optimal method, is the determination of trace elements has been widely used in environmental, food, health, geology, semiconductor and other fields. Using inductively coupled plasma mass spectrometry determination of iodine in urine, the detection limit of 0.4 ng/mL, can improve the detection of urine iodine level, with international most advanced detection technology, but also reduces the probability of harm to the environment and professional.

This method is the important supplement of the arsenic cerium catalytic spectrophotometry method, for different levels of laboratories to provide accurate and reliable, convenient detection technology of environmental protection, effectively monitor the content of urine iodine safeguard people's health.

Relevant link: about release the determination of iodine in urine Part 1: arsenic cerium catalytic spectrophotometry, such as two voluntary health notice of industry standard

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