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- trace impurity boron 痕量硼
- A method was developed for the determination of trace impurity affecting ultraviolet transmittance in ethylene glycol. 建立了测定乙二醇中影响紫外透光率的痕量杂质的方法。
- In this work,an on -line sweeping technique for the determination of trace impurity in nateglinide by using SDS buffer solu tion was developed. 利用在线推扫富集技术建立了毛细管电色谱测定新药那格列奈中痕量杂质的方法。
- Determining trace impurity element of the standard europium oxide by the standard addition method.So the errors owing to neglecting the impurity in the standard are eliminated. 用标准加入法测出氧化铕基准中的微量杂质元素，消除了由于忽略基准中的杂质元素的含量给分析测定带来的误差。
- Detection of the Trace Impurity in Ethylmaltol by ESI TOF MS 电喷雾飞行时间质谱分析乙基麦芽酚中的痕量“杂质”
- A method in which the matrix was matched to calibration curve has been proposed for the direct determination of 13 trace impurities in high-purity tantalum pentoxide by ICP-AES. 摘要本文提出了基体匹配校准曲线，ICP-AES法直接测定高纯氧化钽中13种杂质元素的分析方法，并考察了光谱干扰以及基体效应的影响，确定了仪器最佳工作条件。
- Objective: To establish a micellar electrokinetic chromatography (MEKC) method with the online sweeping technique to determine trace impurities in nateglinide. 目的:利用胶束电动毛细管色谱在线推扫富集技术建立测定那格列奈原料中痕量杂质的方法。
- Determination of Major Components and Trace Impurity in Cu-Pb Alloy by ICP-AES 电感耦合等离子发射光谱法测定铅黄铜中常微量元素
- Spectral Determination of Trace Impurity Elements in Ti and Its Alloys 光谱法测定钛及钛合金中的微量杂质元素
- Two non _ enantiomers and trace impurities in cyhalothrin were identified by HPLC-MS with collision _ induced dissociation(CID) technique.The isomers can be completely separated on an ODS-C18 column. 用高效液相色谱-质谱联用技术研究了三氟氯氰菊酯农药的杂质及含量,并用源内碰撞诱导解离(CID)技术鉴别了所存在的微量杂质。
- I can't trace that letter you sent me. 我找不到你寄给我的那封信。
- He spoke without a trace of emotion. 他说话时毫不动感情。
- The oxygen react vigorously with the impurity in the iron. 氧气与铁中的杂质发生剧烈的化学反应。
- Did the police find any trace of the murderer? 警方找到凶手的行踪了吗？
- They failed to find any trace of the runaways. 他们未能找到逃跑者的任何踪迹。
- There was barely a trace of salt in the soup. 汤里简直一点盐也没有放。
- The post office tried to trace the lost letter. 邮局设法查出那封丢失的信。
- The kids are learning to trace the letter. 孩子们学描字母。
- He always spoke with a trace of sarcasm. 他说话总带着一丝讽刺。
- Of, relating to, derived from, or containing boron. 硼的硼的、与硼有关的、来源于硼的或含硼的
