ag真人国际官网的解决方案 | 量子荧光|微型光纤光谱仪-ag贵宾会

in 2008, an estimated 300,000 babies became ill in china after being fed milk powder adulterated with melamine. melamine is a flame-retardant plastic most often used in industrial products like plastics, adhesives, countertops, dishware and whiteboards. though the addition of melamine to food is not approved by the world health organization’s food commission, it was nevertheless added to watered-down milk to boost the nitrogen content. in doing so, manufacturers were able to fool tests designed to detect natural amino acids – tests to ensure that the protein content of milk products meets minimum acceptable levels for human consumption.

瘀伤时间的测定能有助于对被虐待儿童的诊断。但是，当前的基于目视检查的并将瘀伤的颜色与查阅表中所述的颜色进行比较的测定瘀伤时间的技术不很精确也不客观。因此，多年来，这项技术没有得到临床应用。这个技术不精确的两个原因是：一，目视检验带有主观性；二，瘀伤的颜色变化不仅取决于瘀伤的时间，而且也取决于如尺寸、深度和皮肤类型等因素。 为了解决这最后问题，一个模拟瘀伤的时间行为的3d模型已经被开发出来[1]。光谱学的使用解决了目视检验的主观性的问题。

为了有效保障和促进社会治安持续稳定，切实加强客运、货运、寄递行业的安全监管。特别是在我国举办的奥运会、世博会等大型集会活动需求的拉动下，对违禁品安全检查的措施已经从机场、车站和会场扩展到地铁、轨道交通以及各种群体活动场所。