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(xué)位論文河水底泥中甲基汞的測定李許珍捂導(dǎo)教寅I姓名贏煮雕學(xué)銜，職務(wù)熬撰～審請學(xué)位級別爨糯妻學(xué)科專業(yè)及方向兩飆化學(xué)意羼京機(jī)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(xué)位授予單位和日期黑龍江大學(xué)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(xué)碩士學(xué)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