土壤中阳离子交换量、有机质质控样品/NY/T295-1995/LY/T 1243-1999/GB 9834-1988 Cation exchange capacity and organic matter quality control in soil
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土壤中阳离子交换量、有机质质控样品/NY/T295-1995/LY/T 1243-1999/GB 9834-1988 Cation exchange capacity and organic matter quality control in soil
BWS0012-2016 | 50g
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土壤中阳离子交换量质控样品/NY/T 295-1995/LY/T 1243-1999/LY/T 1245-1999 Cation exchange capacity quality control in soil
BWS0006-2016 | 50g
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土壤中阳离子交换量质控样品/NY/T 295-1995 Cation exchange capacity quality control in soil
BWS0007-2016 | 50g
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土壤(酸性)中交换性钙、镁、钠、钾及阳离子交换量质量控制物质(NY/T 1121.13-2006)、(LY/T 1245-1999)、(NY/T 295-1995)、(LY/T1246-1999)、(LY/T 1243-1999) Exchangeable calcium, magnesium, sodium, potassium, cation exchange capacity quality control substances in acidic soils
RMU121 | 100g/瓶
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土壤中阳离子交换量(CEC)质控样/LY/T 1243-1999
BW8026-1 | 40g
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土壤中阳离子交换量(CEC)质控样/LY/T 1243-1999
BW8026-1 | 40g
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酸性土壤中交换性钙、镁、钠、钾和阳离子交换量分析标准物质(NY/T1121.13-2006/LY/T1245-1999/LY/T1243-1999/NY/T 295-1995/LY/T1246-1999/NY/T 295) Exchangeable calcium, magnesium, sodium, potassium, cation exchange capacity quality control substances in acidic soils
RMH-A274 | 100克/瓶
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• 使用有证标准物质(如GSS系列)进行准确度控制,回收率应在85%-115%范围内
• 实验室需定期参加能力验证,确保检测结果可比性
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