河水底泥中甲基汞的測定.pdf

1、分類號X揸；～UnC諍丈密級一公矗編號凰舞嘗力一：學位論文河水底泥中甲基汞的測定李許珍捂導教寅I姓名贏煮雕學銜，職務熬撰～審請學位級別爨糯妻學科專業(yè)及方向兩飆化學意羼京機論文提交日期曼艘生每俾周艘凰論文答辯日期皇Q!蔓鬟!圭用∞周學位授予單位和日期黑龍江大學2004年月日答辯委員會主席q么孑評閱人。躉掘勰!_建艄一『年月臼黑龍江大學碩士學位論文AbstractSinceentryintothe1970s一1980speriodwater

2、pollutionissuehasbeenbecomingmoreandmoreprominentwiththeworldwiderapiddevelopmentofthepetroleumandorganicchemicalindustriesThecauseof“Minamatadisease’’disasterinJapanwasidentifiedtobemercurypoisoningthathasseriouslyirrev

3、ersiblydamagedthehealthofthousandsofpeopleinseveraldecades，sometimesleadingtotheirdeathsMethylmercurycontentinbottomsludgesofwastewatereffluentsandrivershascaughttheattentionofgovernmemsandthegeneralpublicallovertheworld

4、ItisgenerallyagreedthatitisasignificanthealthfactorthatshouldbecloselymonitoredandtheStateEnvironmentalProtectionAdministrationhaslistedmethylmercuryasaClassOnepollutantTherehasbeenactivedevelopmentofnewsensitive，accurat

5、emethodsfordeterminationofmethylmercuryinwastewatersewagesludgesandriverbottomsiltThispaperdescribestheresultsofdevelopinganewGC(electroncapturedetector)methodWetsludgesampleswerepretreatedby(1)direct，HCIacidsolutionimme

6、rsion，(2)benzeneextractionunderacidiccondition，(3)extractionunderneutralconditionsbyHCl一一L—mercapto—amino—propionicacid—NaAcsolution，andfinally(4)countercurrentbenzeneextractionunderacidicconditionTheextraetantliquidwasd

7、irectlyinjectedintothegaschromatographOnthebasisofaboveexperimentalwork，asuitableandaccurateGCmethodformethylmercurydeterminationthathasimportantandinvaluableapplicationsinthefieldofenvironmentalscienceandhealthtestingha