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- negative ion mass spectrum 负离子质谱
- The mass spectra of phosphodiamidoates have been studied using positive ion FABMS and negative ion FABMS. 本文讨论一类新合成的磷酰二胺酯的质谱特征。
- By comparing the product ion mass spectra of oxypaeoniflorin with those of the unknown component under different collision energy, basic structure unit of the unknown component was determined. 通过比较不同碰撞能量下的未知化合物子和氧化芍药甙的离子碎片,确定了未知化合物的基本结构单元。
- Let's purify air with a negative ion generator. 我们用负离子发生器净化一下空气吧。
- secondary ion mass spectrum 二次离子质谱
- field ion mass spectrum 场致离子质谱
- ion mass spectrum analyzer 离子质谱分析仪
- A chemical compound containing aluminum as part of a negative ion. 铝酸盐一种化合物，铝作为负离子部分包含于其中
- ion mass spectrum 离子质谱
- positive ion mass spectrum 正离子质谱
- A negative ion is an atom which has gained one or more extra electrons. 获得一个或多个额外电子的原子称为负离子。
- The adduct and fragmental behavior of ivermectin was studied in both positive and negative ion detection mode by using electrospray ionization time of flight mass spectrometry. 用电喷雾飞行时间质谱 (ESI TOF MS)研究了伊维菌素在ESI正、负离子检测方式下的加合和碎裂行为。
- Negative ion ESI-MS is a rapid, effective and reliable means to analyze ABS. 负离子ESI-MS是快速、有效和可靠的鉴定ABS的方法。
- The HPLC was subjected to gradient elution and negtive ion mode was adopted in mass spectrum. 高效液相色谱用梯度洗脱,质谱用负离子模式。
- Why do we need super negative ions? 为何人体需要超负电离子?
- Its stucture was investigated through IR,1H NMR and mass spectrum. 用红外光谱、核磁共振氢谱和质谱推测了产物的结构。
- The Zeta charge experiment showed that EBU-1 was a negative ion bioflocculant. 电负性实验表明，EBU-1是阴离子型微生物絮凝剂。
- The vitamin twister uses positive ion / negative ion / negative, positive ion. 维他命导入棒能令肌肤直接吸收水份和营养，使肌肤持久水嫩晶莹。
- The positive and negative ions become separated or dissociated. 正负离子彼此分开或解离。
- Positive ions drift downward, negative ions drift upward. 正离子向下漂移，负离子向上漂移。
