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TW-6000 COD cr水质在线监测仪 buy in Beijing
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TW-6000 COD cr水质在线监测仪

TW-6000 COD cr水质在线监测仪

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在强酸溶液中,一定量的重铬酸钾氧化水样中还原性物质,在一定温度下,Cr6+被水中还原性物质还原为Cr3+,在590nm波长下,分光光度计连续测定Cr3+ 的吸光度,其吸光度与试样中还原物质浓度成正比...
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TW-6000 COD cr水质在线监测仪
TW-6000 COD cr水质在线监测仪
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