工业废水中金属元素的测定

工业废水中金属离子对水环境造成污染,并危及人体健康,应准确进行测定.论述了原子吸收分光光度法测定工业废水中金属元素的原理,重点论述了测定Zn的条件、范围、干扰等因素,总结了测定锌的条件及测定结果;实验证明,用原子吸收分光光度法测定工业废水中的Zn元素,可取得较好的结果.     

提高硫本钛液中有效酸测定结果准确度的途径

讨论了影响有效酸测定结果的因素，提出了完善有效酸测定的方法，提出了有效酸测定结果的准确度。     

连铸结晶器模型内速度场的测定

本文介绍了采用一维激光测速仪测定模型内流体流动速度场的方法。对连铸结晶器模型内的流场作了尝试性测定,获得了较好的结果,弥补了前人在连铸结晶器内流场测定方面存在的缺陷,为今后各种流场的测定提供了经验。     

用火焰原子吸收光度分析羰基镍粉中铁量

介绍了用火焰原子吸收光度法测定羰基镍粉中铁的含量,就测定条件和基本元素对测定的影响等进行了试验探讨。该法在空白液中等量加入基体元素有效地消除了基体元素有效地消除了基体元素镍对测定的干扰,操作简便、快捷。     

用火焰原子吸收光度法分析羰基镍粉中铁量

本文研究了用火焰原子吸收光度法测定羰基镍粉中铁含量，对测定条件和基体无素对测定的影响等进行了试验探讨。本文采用在空白液中等量加入基体元素有效地消除了基体元素镍对测定的干扰，方法简便、快捷、准确。     

微波法快速测定钼酸铵中的水分

采用微波加热法对钼酸铵水分含量进行了测定。探讨了加热时间、微波功率和物料重量对水分测定的影响，并和传统烘箱测定进行了对比。     

断续流动-氢化物发生原子荧光光谱法测定矿石中高含量砷

利用王水分解矿石样品,采用断续流动进样氢化物发生-原子荧光光谱法测定样品中的砷。实验讨论了矿石样品中主量元素对砷测定的干扰及消除方法;分析了测定结果准确性的影响因素,选择了合适的仪器条件、还原剂浓度、测定介质和载流酸度等。在选定的测定条件下,砷的检出限为0.05μg/L,精密度为0.4%,砷的测定结果与国家标准方法测定结果较吻合。采用该方法分别参加了铜、铅、锌精矿的实验室能力验证比对,其结果均为满意。     

烟煤胶质层指数测定的探讨

通过大量的胶质层指数测定实验,对胶质层测定的影响因素以及如何通过改善条件而提高测定的准确度作了详细的论述,同时也总结了测定不同煤种胶质层指数时最大厚度Y值的出现温度。     

板成形中摩擦因数测定方法

采用新型摩擦因数测定装置进行了摩擦因数测定的实验研究，为进一步开展摩擦因数测定及摩擦边界的研究打下了基础，为有限元模拟的真实性提供了参考依据。     

反射光谱法测定合金中铁和镍

报道一种反射光谱法测定合金中铁和镍的新方法．该方法以滤纸转移试样,并选择性富集待测组分,反射光谱法测定．讨论了该方法的测定条件等．应用于铝合金中铁和合金钢中镍的测定,取得了满意结果．     

Recrystallization kinetics of a cold rolled dual-phase steel sheet

Determination of the recrystallization kinetics by optical microscopy and hardness test. The activation energy corresponds to that of carbon-diffusion in α Fe. Determination of the recrystallization texture from X-ray pole figures.     

《萘不挥发物的测定方法》国家标准综述

阐述了制定《萘不挥发物的测定方法》（GB／T6701—2005）标准的工作概况、标准概况、试验工作、试验结论及标准水平。     

Optimization of Holding Temperature and Holding Thickness for Controlled Rolling on Plate Mill

Holding temperature and holding thickness are main parameters for two-phase controlled rolling on plate mill. The optimization of holding temperature and holding thickness for pass schedule calculation of two-phase controlled rolling on plate mill was presented and its feature is as follows： （1） Determination of holding thickness can be automatically obtained based on the influence of mill safety limits, tracking zone length and holding time on holding thickness; （2） Determination of holding temperature can be automatically obtained and the holding time can be reduced as much as possible; （3） Algorithm can modify the holding temperature and thickness depending on slab size and product size.     

6N铟中锡的化学光谱测定-巯基棉富集分离

本文阐述了高纯铟中锡的化学光谱测定方法，确定了各种光谱测定条件，测定范围0.05-1.6ppm。     

Energy-Efficient Cooling and Hydraulic Descaling Systems

Metallurgist - Determination of real boundary cooling conditions is a fundamental requirement for numerical models and simulations to optimize and control selected processes in metallurgy. To...     

高金银含量粗铅的AB样检测法

详细介绍了对高金银含量粗铅的非常规检验方法即ＡＢ样检测法的实践及其效果,用事实验证了ＡＢ样检测法较之常规检验方法的优越性。     

Anisothermic oxidation of CMn steels

Introduction of the new term of anisothermic oxidation. Investigation on the basis of experiments of the kinetics of anisothermic oxidation on technical steels in the atmosphere dry air. Determination of its influence on continuous isothermic oxidation.     

重铬酸钾容量法测定镝铁合金中的铁量

采用重铬酸钾容量法测定了镝铁合金中的铁,系统考察了有关试剂加入量对测定结果的影响,并进行了精密度及标准回收试验.此方法准确、快速.     

Application of thermogravimetry to loss on drying test and water-content determination of drugs

Thermogravimetry, one of the techniques of thermal analysis, was applied to the quality control of drug raw materials as a "Loss on Drying" or for "Water Content Determination". Twenty two kinds of drugs were selected for the comparison of the applicability of thermogravimetry with that of Loss on Drying Test and/or Water Content Determination by the Karl-Fisher method. In all kinds of drugs, it was ascertained that the results with thermogravimetry agreed well with those obtained by Loss on Drying test and/or Karl-Fisher method. In conclusion, thermogravimetry can be used as a substitute for the Loss on Drying test in cases where drug possess a water bound strongly. Further, thermogravimetry can be utilized for some drugs to which the Karl-Fisher method cannot be applied due to their insolubility in Karl-Fisher reagents.     

Hygienic standardization of temperature parameters of sauna effects on pre-school children

Critical temperature (70 degrees C) of hot air exposure of children aged 4-5 was determined by physiological investigations. Determination of isothermal skin sites of children is useful for hygienic standardization of sauna air exposure.