Article(id=1242133218229563483, tenantId=1146029695717560320, journalId=1146031591421210625, issueId=1242133213372556217, articleNumber=null, orderNo=3, doi=10.3981/j.issn.1000-7857.2015.06.001, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1423411200000, receivedDateStr=2015-02-09, revisedDate=1424880000000, revisedDateStr=2015-02-26, acceptedDate=null, acceptedDateStr=null, onlineDate=1428653855057, onlineDateStr=2015-04-10, pubDate=1427472000000, pubDateStr=2015-03-28, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1428653855057, onlineIssueDateStr=2015-04-10, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1774077236939, creator=sys-migrate, updateTime=1774077236939, updator=sys-migrate, issue=Issue{id=1242133213372556217, tenantId=1146029695717560320, journalId=1146031591421210625, year='2015', volume='33', issue='6', pageStart='1', pageEnd='128', issueExtLink='null', onlineDate='null', pubDate='1427472000000', pubDateStr='2015-03-28', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=3, issueType=-1, specialIssue=null, createTime=1774077235785, creator='sys-migrate', updateTime=1774077235785, updator='sys-migrate', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=13, endPage=19, ext={EN=ArticleExt(id=1242133222797160557, articleId=1242133218229563483, tenantId=1146029695717560320, journalId=1146031591421210625, language=EN, title=Gaseous and particulate carbonyl compounds in Shanghai ambient air, columnId=1242116903087440448, journalTitle=Science & Technology Review, columnName=Spescial Issues, runingTitle=null, highlight=null, articleAbstract=In order to explore the concentration levels and variations of carbonyl compounds in the atmosphere, a filter pack (FP) system was used to collect gaseous and particulate carbonyl compounds simultaneously in Shanghai ambient air. There are three 47 mm filters in the FP system. Particulate carbonyls were collected on the first filter directly and then the gaseous carbonyls were collected on the second and third filters impregnated with PFBHA. The coating amount of PFBHA was 12 μmol, the sampling flow was 4 L·min-1 for 4 hours. The filter samples were extracted by hexane and injected into the GC/MS system. Seasonal and diurnal variations of carbonyl compounds as well as the gas-particle partitioning were studied. The results showed as follows: 1) 15 target carbonyl compounds are all detected in Shanghai ambient air, including 13 mono-carbonyls and 2 dicarbonyls; 2) the carbonyl compounds exhibit significant seasonal and diurnal variations with higher concentrations in summer, the concentrations of gaseous carbonyls reach the maximum at noon while the particle phases achieve the minimum values at the same time; the total concentration of carbonyls is 33.8±15.9 μg/m3 in summer, significantly higher than the levels in winter (10.5±5.0 μg/m3 ) and spring (14.0±7.0 μg/m3 ); 3) gas-particle partitioning of carbonyl compounds is found to be positively correlated with ambient temperature while negatively with relative humidity. Compared to the annular denuder-filter pack (AD-FP) system, the FP system is more suitable for field observation., authors=WANG Fang1 , FENG Yanli1 , JIANG Zhiming1 , QIU Yiqin1 , CHEN Yingjun2 , authorsList=WANG Fang, FENG Yanli, JIANG Zhiming, QIU Yiqin, CHEN Yingjun, authorCompany=1. School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China;3 )显著高于冬季和春季(分别为(10.5±5.0)和(14.0±7.0)μg/m3 );3)羰基化合物的气粒分配规律表现为与温度呈正相关、与相对湿度呈负相关。本研究表明, FP 系统可替代AD-FP(环形溶蚀器-滤膜系统)同时采集大气中气相和颗粒相中的羰基化合物, 易于携带, 为羰基化合物的野外观测提供便利。, authors=王芳1 , 冯艳丽1 , 姜知明1 , 仇奕沁1 , 陈颖军2 , authorsList=王芳, 冯艳丽, 姜知明, 仇奕沁, 陈颖军, authorCompany=1. 上海大学环境与化学工程学院, 上海200444;
科技导报
| 专题论文 2015, 33(6): 13-19
上海大气中气相和颗粒相羰基化合物研究
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王芳1 , 冯艳丽1 , 姜知明1 , 仇奕沁1 , 陈颖军2
作者信息
1. 上海大学环境与化学工程学院, 上海200444;
通讯作者:
冯艳丽,研究员,研究方向为大气环境科学,电子信箱:fengyanli@shu.edu.cn
Gaseous and particulate carbonyl compounds in Shanghai ambient air
Affiliations
出版时间: 2015-03-28
doi: 10.3981/j.issn.1000-7857.2015.06.001
文章导航
为探究大气中羰基化合物的质量浓度水平及变化规律, 利用滤膜系统(FP)同时采集大气中颗粒相和气相羰基化合物, FP系统由3 层47 mm 滤膜组成, 其中, 第1 层滤膜用于收集颗粒相羰基化合物, 第2 层和第3 层滤膜涂布五氟苄基羟胺(PFBHA)衍生剂, 用于收集气相羰基化合物。PFBHA 的涂布量为12 μmol、采样流速4 L/min, 每个样品采集4 h。采集后的样品用正己烷提取。利用该方法对上海市大气中的羰基化合物进行研究, 结合气相色谱/质谱仪(GC/MS), 分析大气中羰基化合物浓度的日变化、季节变化以及气相-颗粒相分配规律。研究结果表明:1)上海市大气中15 种目标化合物均能检测到, 包括13 种单羰基化合物和2 种二羰基化合物;2)上海大气中羰基化合物具有明显的日变化和季节变化, 气相羰基化合物的浓度在中午达到最大值, 颗粒相则相反;夏季羰基化合物的总质量浓度((33.8±15.9)μg/m3 )显著高于冬季和春季(分别为(10.5±5.0)和(14.0±7.0)μg/m3 );3)羰基化合物的气粒分配规律表现为与温度呈正相关、与相对湿度呈负相关。本研究表明, FP 系统可替代AD-FP(环形溶蚀器-滤膜系统)同时采集大气中气相和颗粒相中的羰基化合物, 易于携带, 为羰基化合物的野外观测提供便利。
滤膜系统
/
五氟苄基羟胺
/
羰基化合物
/
气粒分配
In order to explore the concentration levels and variations of carbonyl compounds in the atmosphere, a filter pack (FP) system was used to collect gaseous and particulate carbonyl compounds simultaneously in Shanghai ambient air. There are three 47 mm filters in the FP system. Particulate carbonyls were collected on the first filter directly and then the gaseous carbonyls were collected on the second and third filters impregnated with PFBHA. The coating amount of PFBHA was 12 μmol, the sampling flow was 4 L·min-1 for 4 hours. The filter samples were extracted by hexane and injected into the GC/MS system. Seasonal and diurnal variations of carbonyl compounds as well as the gas-particle partitioning were studied. The results showed as follows: 1) 15 target carbonyl compounds are all detected in Shanghai ambient air, including 13 mono-carbonyls and 2 dicarbonyls; 2) the carbonyl compounds exhibit significant seasonal and diurnal variations with higher concentrations in summer, the concentrations of gaseous carbonyls reach the maximum at noon while the particle phases achieve the minimum values at the same time; the total concentration of carbonyls is 33.8±15.9 μg/m3 in summer, significantly higher than the levels in winter (10.5±5.0 μg/m3 ) and spring (14.0±7.0 μg/m3 ); 3) gas-particle partitioning of carbonyl compounds is found to be positively correlated with ambient temperature while negatively with relative humidity. Compared to the annular denuder-filter pack (AD-FP) system, the FP system is more suitable for field observation.
filter pack system
/
o-(2, 3, 4, 5, 6-pentafluorobenzyl) hydroxylamine
/
carbonyl compounds
/
gas/particle partitioning
王芳, 冯艳丽, 姜知明, 仇奕沁, 陈颖军.
上海大气中气相和颗粒相羰基化合物研究.
科技导报,
2015
, 33
(6)
: 13
-19
.
DOI: 10.3981/j.issn.1000-7857.2015.06.001
WANG Fang, FENG Yanli, JIANG Zhiming, QIU Yiqin, CHEN Yingjun.
Gaseous and particulate carbonyl compounds in Shanghai ambient air[J].
Science & Technology Review ,
2015
, 33
(6)
: 13
-19
.
DOI: 10.3981/j.issn.1000-7857.2015.06.001
2015年第33卷第6期
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文章信息
doi: 10.3981/j.issn.1000-7857.2015.06.001
接收时间：2015-02-09
首发时间：2015-04-10
出版时间：2015-03-28
收稿日期：2015-02-09
修回日期：2015-02-26
通讯作者:
冯艳丽,研究员,研究方向为大气环境科学,电子信箱:fengyanli@shu.edu.cn
https://castjournals.cast.org.cn/joweb/kjdb/CN/10.3981/j.issn.1000-7857.2015.06.001
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2种不同金属材料的力学参数
科 属数 种数 占总种数比例 属 种数 占总种数比例 鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78 小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39 多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39 红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87 小菇属 Mycena 11 5.26 光柄菇属 Pluteus 5 2.39 红菇属 Russula 17 8.13 栓菌属 Trametes 5 2.39
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