玺标（上海）科技基体标物/质控样品：土壤中有效硒/NY/T3420-2019ZCRM126759.4±9.2μg/kg瓶70g

玺标（上海）科技基体标物/质控样品：土壤中有效硒/NY/T3420-2019ZCRM030159.7μg/kg瓶70g

玺标（上海）科技基体标物/质控样品：土壤中全硼HJ766/HJ781ZCRM151516.9±3.0mg/kg瓶40g

玺标（上海）科技基体标物/质控样品：土壤中全氮HJ717-2014ZCRM01947800±1171mg/kg瓶40g

玺标（上海）科技基体标物/质控样品：土壤中交换性盐基总量LY/T1244ZCRM04801.05±0.16cmol/kg瓶100g

玺标（上海）科技基体标物/质控样品：土壤中17种二噁英类ZCRM1163浓度见证书瓶10g