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价格：
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产品型号：931041，0-120 mg/l NO3–
公司名称：上海采松实验室设备有限公司
所在地：上海松江
发布时间：2021-06-01
上海采松实验室设备有限公司
产品简介
◆德国MN的931041硝酸盐检测盒，可检测的硝酸盐范围是0-1-3-5-10-20-30-50-70-90-120mg/l NO3–，可使用110次，保质期18个月，试剂补充装的型号是931241.VISOCOLOR® ECO Nitrate
产品详情
硝酸盐检测盒 VISOCOLOR® ECO Nitrate
◆德国MN的931041硝酸盐检测盒，可检测的硝酸盐范围是0-1-3-5-10-20-30-50-70-90-120mg/l NO3–，可使用110次，保质期18个月，
◆试剂补充装的型号是931241.
VISOCOLOR® ECO
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联系人：李小姐
硝酸盐检测盒 VISOCOLOR® ECO Nitrate
◆德国MN的931041硝酸盐检测盒，可检测的硝酸盐范围是0-1-3-5-10-20-30-50-70-90-120mg/l NO3–，可使用110次，保质期18个月，
◆试剂补充装的型号是931241.
VISOCOLOR® ECO
说明内容 | 详细描述 |
测试原理 | 滴定计数法： |
目测法 | |
不含危险特质，不会产生环境污染 | |
价格经济 | |
使用方便 | |
具有更高的灵敏度和精确性 | |
由于分开滴定试剂，颜色变化更为明显 | |
试剂瓶上清楚的标有用量说明 | |
测试方法 | 1、在取样试管中加入样品溶液 |
2、加入指示试剂混合均匀 | |
3、 逐滴加入滴定溶液 | |
4、直到指示剂发生颜色变化 | |
注计算滴数：1 滴=1 个测量单位，例如：1 °d |
硝酸盐检测盒Colorimetric determination of nitrate
Nitrate is reduced to nitrite with an inorganic reducing agent. Nitrite is then diazotised with an aromatic amine and simultaneously coupled to form an azo dye.
Nitrite interferes (same reaction), but can be eliminated by boiling with amidosulphuric acid (Cat. No. 918 973). Oxidising substances such as chlorine can lower the result or completely inhibit the reaction depending on their concentration.
硝酸盐检测盒Data and ordering information
Nitrate is reduced to nitrite with an inorganic reducing agent. Nitrite is then diazotised with an aromatic amine and simultaneously coupled to form an azo dye.
Nitrite interferes (same reaction), but can be eliminated by boiling with amidosulphuric acid (Cat. No. 918 973). Oxidising substances such as chlorine can lower the result or completely inhibit the reaction depending on their concentration.
硝酸盐检测盒Data and ordering information
Cat. No. | 931 041 (931 241) |
Type | colorimetric test kit (refill pack) |
Range | 0-1-3-5-10-20-30-50-70-90-120 mg/l NO3– |
Sufficient for | 110 determinations |
Shelf life | at least 18 months |
Sea water suitability | yes |
Detectable with PF-11 | yes |
Nitrates occur in most ground and surface waters in concentrations of up to 20 mg/l. In addition to mere geological influences nitrate concentrations can also increase from agricultural sources (fertilisers). The VISOCOLOR® test kits are intended for the determination of nitrate in surface and drinking water and in industrial waste waters which do not contain high concentrations of interfering ions.
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