Guangzhou Hexin Instrument. 

Guangzhou Hexin Instrument Co.,Ltd. specializes in the development and production of mass spectrometry (MS) instruments, alongside offering comprehensive testing services. Their diverse product portfolio addresses various applications. For environmental monitoring, they provide advanced systems such as online mass spectrometers for volatile organic compound (VOC) analysis, PM2.5 online source apportionment and monitoring systems, online pre-concentrator gas chromatography MS monitoring systems, two-dimensional gas chromatography time-of-flight MS, and portable VOC analysis MS devices. In the biomedical sector, their offerings include automated microbial MS detection systems. Laboratory-focused instruments feature inductively coupled plasma MS, automatic microbial MS detection systems, two-dimensional gas chromatography time-of-flight MS, and liquid chromatography-time-of-flight MS. Established in 2004, the company is headquartered in Guangzhou, China.