乙二羟肟溶液吸收法测定空气中的二氧化硫

来源 :职业卫生与应急救援 | 被引量 : 0次 | 上传用户:zs001444
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
现广泛应用于测定空气中二氧化硫的方法是四氯汞盐溶液吸收—盐酸副玖瑰苯胺比色法。由于该法的吸收液中含有高浓度的剧毒汞盐,危害分析人员的健康和污染环境,人们一直在寻找无毒的吸收液。华西医科大学公共卫生学院改进现用吸收液,采用无毒的乙二羟肟作吸收液,在PH小于2的环境中被吸收的二氧化硫极易解离,而与盐酸副玖瑰苯胺和甲醛发生显色反 Is widely used in the determination of sulfur dioxide in the air is tetrachloromer mercury salt solution absorption - Kyrgyzstan hydrochloride aniline colorimetry. Because of the high concentration of toxic mercury salts contained in the absorption fluid of the Act, which is harmful to the health of the analyst and to the environment, people are constantly searching for non-toxic absorption solutions. Huaxi Medical University School of Public Health to improve the current absorption solution, the use of non-toxic glycolic acid as absorbent, the PH is less than 2 was absorbed in the environment easily dissociated sulfur dioxide, and benzoperic acid aniline and formaldehyde were significantly Color anti
其他文献
阅读理解是整个高中英语教学的重要组成部分。在高中英语阅读教学中进行小组合作学习不仅激发了学生的学习积极性,还提升了高中英语教学效率。首先分析了小组合作学习在高中
This paper describes the control of a helicopter with one degree of freedom.System differential equations coefficients were identified by experiments in order t
会议
禁忌是人们为避免某种臆想的超自然力量带来的灾祸,而对某种人、物、言、行的限制,是一种毫无科学因素在内的心理防范措施。首先,禁忌是一种心造的幻影。它所说的某些话,某
An online UAV collision avoidance trajectory planning algorithm based on Pythagorean Hodograph (PH) curve is presented.To fully use the PH trajectories performa
会议
Tracking a vary number of moving objects from an unsteady aerial platform has three major challenges.There are fast camera motion,changing scene and lighting,an
会议
The modeling,guidance and control of flexible air-breathing hypersonic vehicles (FAHVs) is highly challenging and still an open problem because of the complex i
会议
虽然我国目前也非常重视学生实际操作技能的培养,但传统的培养模式客观上使学生远离了生产第一线,集中安排的企业实习又不利于学生及时将所学理论同实践相结合,因为企业不可
初为人父母的慌乱总是表现在对待初生儿的护理知识方面的缺乏,有时是不懂有时却是过于紧张。这里简单介绍几个常见的护理禁忌。忌用塑料薄膜作婴儿尿布塑料薄膜不透气,用它来
微课作为一种新型的教学资源,被普遍应用于大学英语教学中,不断开拓大学英语教学的新模式。笔者在将微课应用于高校英语课堂的实践中发现,不是所有的教学知识点都可以以微课
This paper describes a planning algorithm based on airborne for UAV to track and intercept moving target in the presence of dynamic obstacles and considering th
会议