Shanghai Lian Hua company is even China Lanzhou Environmental Protection Technology Co., Ltd. (former Lanzhou Refining & Chemical Environmental Protection Equipment Research Institute) the establishment of the Shanghai office, is
manufacturers one of China's earliest development of water quality monitoring instrument
1982 May, my company (formerly Lanzhou Refining & Chemical Environmental Protection Equipment Research Institute) invented catalytic method for rapid determination of chemical oxygen demand COD, the traditional method in the 2 hour reflux digestion is shortened to 10 minutes, this method as the world chemistry new contributions included in USA "CHEMICAL ABSTRACTS" in the same year development, produced the world's first COD catalytic rapid determination instrument
Shanghai Lian Hua Industry Co., Ltd.
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