GBZ/T 160.30-2004 工作场所空气中无机含磷化合物的测定方法

本标准规定了监测工作场所空气中无机含磷化合物浓度的方法。
本标准适用于工作场所空气中无机含磷化合物浓度的测定。


磷化氢为无色气体,具有难闻的特殊腥臭味.纯的磷化氢比重1.85,沸点一87.4℃,微溶于冷水,乙醇和乙醚.易被活性炭吸附.受热可分解,易氧化,易自燃和爆炸.在金属酸洗,电石生产,磷的提炼,制造镁粉,含磷酸钙的水泥等过程中均可产生磷化氢.含磷的矿砂,矽铁,金属锌,锡,铝等遇水时,也可生成磷化氢.磷化铝近年广泛用于粮食的熏蒸剂,也产生磷化氢.



浩瀚色谱（山东）应用技术开发有限公司研究了富集柱类型,富集温度和色谱操作条件等因素对二次富集气相色谱法测定环境中痕量PH3的影响,并将其应用于青岛大气和东海陆架沉积物中PH3的测定,取得了较为满意的结果.该方法具有操作简单,灵敏度高,分析速度快,干扰少等优点,其检测限为0.02 pg,精密度2.0%,线性范围为0.56 pg~5.6 ng.用此方法测定了冬季大陆架表层沉积物中PH3含量为(0.51~23.10)×10-9,其分布明显受到人类活动的影响,研究结果还表明东海沉积物中的PH3是海洋中磷的潜在来源之一;大气中PH3日变化趋势说明大气中PH3明显受光照的影响.

车间空气中磷化氢测定玻璃柱   测试谱图：



Glass column for determination of phosphine in workshop air
Glass column for determination of phosphine in workshop air Details:

name: glass column

Stationary phase: polymer beads

Granularity: 40-60 mesh

Specifications: 1m*4mm

Model: GDX-101


GBZ/T 160.30-2004 Determination method of inorganic phosphorus-containing compounds in workplace air

This standard specifies methods for monitoring the concentration of inorganic phosphorus-containing compounds in workplace air.
This standard applies to the determination of the concentration of inorganic phosphorus-containing compounds in the workplace air.


Phosphine is a colorless gas with an unpleasant special fishy odor. Pure phosphine has a specific gravity of 1.85, a boiling point of -87.4 °C, and is slightly soluble in cold water, ethanol and ether. It is easily adsorbed by activated carbon. It is easy to spontaneously ignite and explode. Phosphine can be generated in the process of metal pickling, calcium carbide production, phosphorus refining, magnesium powder manufacturing, calcium phosphate-containing cement, etc. Phosphine-containing ore, ferrosilicon, metal zinc, tin, aluminum When it encounters water, it can also generate phosphine. Aluminum phosphide has been widely used as a fumigant for food in recent years, and also produces phosphine.



Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. studied the influence of the type of enrichment column, enrichment temperature and chromatographic operating conditions on the determination of trace PH3 in the environment by secondary enrichment gas chromatography, and applied it to the atmosphere of Qingdao Satisfactory results were obtained in the determination of PH3 in the sediments of the continental shelf of the East China Sea and the East China Sea. The method has the advantages of simple operation, high sensitivity, fast analysis speed, and less interference. The detection limit is 0.02 pg, the precision is 2.0%, and the linear range is 0.56 pg~5.6 ng. The PH3 content in the continental shelf surface sediments in winter was determined by this method to be (0.51~23.10)×10-9, and its distribution is obviously affected by human activities. The results also show that PH3 in the sediments of the East China Sea is One of the potential sources of phosphorus in the ocean; the diurnal variation trend of PH3 in the atmosphere indicates that PH3 in the atmosphere is obviously affected by light.

Glass column test spectrum for determination of phosphine in workshop air: