推荐：Nitrate Test@2024技术文献已更新

属性
特殊分析物
nitrate

质量水平
100

measuring range
10-150 mg/L (NO3-)

相容性
for use with MQUANT®

detection method
colorimetric

储存温度
15-25°C

说明
一般描述
方法：使用色卡和滑动比色架比色 10-25-50-75-100-125-150 mg/l NO?? MQuant®
This MQuant® Nitrate test (formally MColortest®) is suitable for the colorimetric determination using the easy to use color card. The evaluation considers the untreated sample so even turbid and colored water samples can be analyzed without further preparation.Nitrate is naturally present in soil, water and food and must be closely monitored. The test is suitable for testing in
Groundwater, drinking water, and surface water (also humin-containing samples)
Waters from aquaculture
Swimming-pool water
Industrial water
Wastewater
Food and animal fodder after appropriate sample pretreatment
Soils and fertilizers after appropriate sample pretreatment
This test is not suited for seawater.

Method
Nitrate ions are reduced to nitrite ions that react in acidic solution with sulfanilic acid to form a diazonium salt. This reacts with a benzoic acid derivative to form an orange-yellow azo dye. The nitrate concentration is measured semiquantitatively by allocating the color to a value on a reference scale.
分析说明
Application testconforms
法律信息
MCOLORTEST is a registered trademark of Merck KGaA, Darmstadt, Germany
MQUANT is a registered trademark of Merck KGaA, Darmstadt, Germany