水溶肥料中总氮、铵态氮、硝态氮、酰胺态氮质量控物质(NY/T2542-2014)、(NY/T1116-2014)、(GB/T3595-2000) Quality control substances for total nitrogen, ammonium nitrogen, nitrate nitrogen and amide nitrogen in water-soluble fertilizers
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肥料中总氮、硝态氮、和铵态氮和酰胺态氮分析标准物质(GB/T22923-2008/NY/T 1116-2014/GB/T8572-2010/NY/T2542-2014/NY/T1116-2014) Total nitrogen、nitrate nitrogen 、ammonium nitrogen and amide nitrogen in fertilizers
RMH-F153 | 70克/瓶
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肥料中铵态氮、硝态氮、总氮质控样品/GB/T 22923-2008/NY/T 2542-2014/GB/T 8572-2010/GB/T 3595-2000 Ammonium nitrogen, nitrate nitrogen, and total nitrogen quality control in fertilizers
BWS0245-2016 | 50g
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肥料中铵态氮、硝态氮质控样品/GB/T 3595-2000 Ammonium nitrogen and nitrate nitrogen quality control in fertilizers
BWS0244-2016 | 50g
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水溶肥料中总氮、硝态氮和铵态氮分析标准物质(GB/T22923-2008/GB/T8572-2010/NY/T 1116-2014/NY/T1116-2014) Total Nitrogen、NO3-N and NH4+-N in water-soluble fertilizer
RMH-F221 | 50克/瓶
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复合肥料中总氮、硝态氮和铵态氮分析标准物质(GB/T22923-2008/GB/T8572-2010/NY/T 1116-2014/NY/T1116-2014) Total Nitrogen、NO3-N and NH4+-N in compound fertilizers
RMH-F060 | 50克/瓶
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肥料中总氮分析标准物质(GB/T8572-2010/NY/T2542-2014/GB/T22923-2008) Total nitrogen in fertilizer
RMH-F065a | 70克/瓶
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肥料中总氮质控样品/GB/T 22923-2008/NY/T 2542-2014/GB/T 8572-2010 Total Nitrogen Analysis in Fertilizers
BWS0093-2016 | 50g
Quality control substances for total nitrogen, ammonium nitrogen, nitrate nitrogen and amide nitrogen in water-soluble fertilizers
NY/T2542-2014、NY/T 1116-2014、GB/T 3595-2000
总氮、杜马斯燃烧法;铵态氮(蒸馏后-滴定法)、硝态氮【紫外分光光度法UV、离子色谱法(IC)】
铵态氮(NH4+-N)
3.69
0.34
%
硝态氮(NO3-N)
6.19
0.59
%
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