standard substance meaning in Chinese

标准品
标准物质

Study of drying primary standard substances by microwave in lab
实验室常用基准物质的微波干燥实验
Our company is specialized in trading chemical reagent , food additive , pharmaceutical adjuvant , standard substance and laboratory consumables , totally over 4000 types
我公司专业经营化学试剂、食品添加剂、医药辅料，标准品及实验室消耗品，品种达4000余种，行销全国三十多个省市、自治区。
Industrial chemicals kanto chemical supplies specialty reagents for special purpose research , for example analysis , synthesis , standard substances , chromatography , biochemistry , super microanalysis
关东化学提供分析，合成，标准品，层析，生化研究，超微量分析等特殊用途之试剂，可使用于各种研究领域。
A series of standard solution made up with standard substance of sodium carbonate , and combusted in a high - frequency induction furnace with pure oxygen , and the amount of total carbon was measured by infrared absorption
摘要以碳酸钠为基准物质，配成一系列标准溶液，在通有纯氧气的高频炉中燃烧，红外吸收法测定碳含量，绘制校准曲线，测定矽中总碳量，与推荐值基本一致，方法准确、结果满意。