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近年我们研制成一种可用于水产养殖水体中NH_4~+及NO_2~-浓度快速测定的试剂盒,对常规的比色法作了重要改进,使其成为可用于现场测定,并适用于淡、海水,测定范围0—10mgNH_4~+/L和1—1.0mg-NO_2~-/L。两种试剂盒测定结果与标准方法(GB7479-89;GB7493-87)的结果一对,相对标准偏差≤23％;能满足现场测定的要求。本试剂盒体积小(150×110×50mm~3),重量轻(约250克),每盒可作150次测定,每次测定仅须2—3分钟,操作简便,普通养殖人员可自行测定。
In recent years, we have developed a kit that can be used for the rapid determination of NH_4 ~ + and NO_2 ~ - in aquaculture water. It has made important improvements to the conventional colorimetric method, making it a ready-to-use assay for light and seawater , The determination range 0-10mgNH_4 ~ + / L and 1-1.0mg-NO_2 ~ - / L. The results of the two kits and the standard method (GB7479-89; GB7493-87) have a pair of results, the relative standard deviation is less than or equal to 23%; and the requirement of field measurement can be met. The kit is small in size (150 × 110 × 50mm ~ 3), light weight (about 250g) and can be measured 150 times per box. Each assay requires only 2-3 minutes, easy to operate and can be determined by ordinary aquaculture personnel .