硝酸鹽測試盒 VISOCOLOR® alpha Nitrate
◆MN的935065硝酸鹽測試盒，可測試的硝酸鹽范圍是2-8-15-30-50 mg/l NO3–，每盒可測試100次，保質(zhì)期18個月。
VISOCOLOR® alpha
說明內(nèi)容 | 詳細描述 |
測試原理 | 比色法： |
•目測法 |
•不含危險物質(zhì)，不會產(chǎn)生環(huán)境污染 |
•價格經(jīng)濟使用方便 |
•測試結(jié)果** |
•帶有圖示操作說明 |
•包裝小巧，便于攜帶 |
•試劑瓶上清楚的標有用量說明 |
測試方法 | 1、在取樣試管中加入樣品溶液 |
2、加入液體試劑 |
3、加入固體試劑 |
4、混合均勻 |
5、等待一定反應時間 |
6、與標準比色卡進行顏色對比并從上部觀察 |
Colorimetric determination of nitrate MN硝酸鹽測試盒
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.
MN硝酸鹽測試盒 Data and ordering information
Cat. No. | 935 065 |
Type | colorimetric test kit |
Range | 2 · 8 · 15 · 30 · 50 mg/l NO3– |
Sufficient for | 100 determinations |
Shelf life | at least 18 months |
Sea water suitability | yes |
Detectable with PF-11 | no |
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.
