陕西科技大学学报（自然科学版）
陝西科技大學學報（自然科學版）
협서과기대학학보（자연과학판）
JOURNAL OF SHAANXI UNIVERSITY OF SCIENCE & TECHNOLOGY
2007年
3期
82-84
,共3页
甲磺酸%单个粒子%复合薄膜法%上川岛
甲磺痠%單箇粒子%複閤薄膜法%上川島
갑광산%단개입자%복합박막법%상천도
Methane Sulfonic Acid%individual particle%multiple thin film method%Shangchuan Island
气溶胶样品采自中国广东上川岛的海洋大气中,采集时通过一个二级粒子撞击器把粒子分为2部分:粗大粒子(r＞1.0 μm)和微小粒子(1.0μm≥r＞0.2 μm),利用复合薄膜法和电子显微镜检测甲磺酸粒子.结果表明上川岛海洋大气中有甲磺酸粒子的存在,其数量浓度在0 nmol/m3和0.5 nmol/m3之间变化,并且甲磺酸粒子主要存在于粗大粒子中和较高湿度的条件下.
氣溶膠樣品採自中國廣東上川島的海洋大氣中,採集時通過一箇二級粒子撞擊器把粒子分為2部分:粗大粒子(r＞1.0 μm)和微小粒子(1.0μm≥r＞0.2 μm),利用複閤薄膜法和電子顯微鏡檢測甲磺痠粒子.結果錶明上川島海洋大氣中有甲磺痠粒子的存在,其數量濃度在0 nmol/m3和0.5 nmol/m3之間變化,併且甲磺痠粒子主要存在于粗大粒子中和較高濕度的條件下.
기용효양품채자중국엄동상천도적해양대기중,채집시통과일개이급입자당격기파입자분위2부분:조대입자(r＞1.0 μm)화미소입자(1.0μm≥r＞0.2 μm),이용복합박막법화전자현미경검측갑광산입자.결과표명상천도해양대기중유갑광산입자적존재,기수량농도재0 nmol/m3화0.5 nmol/m3지간변화,병차갑광산입자주요존재우조대입자중화교고습도적조건하.
Aerosol samples were collected from coastal atmosphere of Shangchuan Island in Guangdong, China. Atmospheric particles were size-fractionated into two size ranges: coarse particles(r＞1.0μm) and fine particles(1.0 μm≥r＞0.2 μm). Presence of Methane Sulfonic Acid (MSA) in individual particles was determined with an electron microscope using multiple thin film method. It was found that there is MSA particle in the coastal atmosphere (the number concentration of MSA particles varied about from 0 nmol/m3 to 0.5 nmol/m3), and that MSA-containing particles existed mainly in the coarse size range and under high humid conditions.
