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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 林宜長 | |
dc.contributor.author | Yi-Hua Wu | en |
dc.contributor.author | 吳宜樺 | zh_TW |
dc.date.accessioned | 2021-06-13T07:11:18Z | - |
dc.date.available | 2006-08-12 | |
dc.date.copyright | 2005-08-12 | |
dc.date.issued | 2005 | |
dc.date.submitted | 2005-07-26 | |
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[26] Yong Chul Shin, Nam Won Paik, Reduction of Hexavalent Chromium Collection on PVC Filters, AIHAJ 2000;61: 563-567, [27] 郭憲文、李信謀、賴俊雄,影響六價鉻環境採樣分析之因素,勞工安全衛生研究季刊 1998;第六卷第一期,69-78。 [28] Yasutomo SUZUKI and Fumio SERITA, Simultaneous Determination of Water-Soluble Trivalent and Hexavalent Chromium by Anion Exchange High-Pressure Liquid Chromatography. Industrial Health 1985;23:207-220. [29] Wang J., Ashley K., Kennedy ER and Neumesister C. Determination of Hexavalent Chromium in Industrial Hygiene Samples Using Ultrasonic Extraction and Flow Injection Analysis. Analyst 1997;122:1307-1312. [30] 謝俊明:作業環境空氣中六價鉻與三價鉻之定量分析。勞工安全衛生研究季刊 1995;第三卷第四期:61-80。 [31] Michael Sperling, Shukun Xu, and Bernhard Welz., Determination of Chromium(III) and Chromium(VI) in Water Using Flow Injection On-Line Preconcentration with Selective Adsorption on Activated Alumina and Flame Atomic Absorption Spectrometric Detection. Anal. Chem. 1992;64:3101-3108 [32] Wang J., Ashley K., Marlow D. England EC and Carlton G. Field Method for the Determination of Hexavalent Chromium by Ultrasonication and Strong Anion-Exchange Solid-Phase Extraction. Anal. Chem. 1999;71:1027-1032. [33] Steen D., Thomas A. and Christensen JM. Preparation of filters loaded with welding dust. A homogeneity and stability study of hexavalent chromium. Analytica Chimica Acta 1994;286:273-282. [34] Molina D. and Martin TA. An Ion Chromatographic Method for Insoluble Chromates in Paint Aerosol. Am. Ind. Hyg. Assoc. J 1987;48(10):830-835. [35] Byrdy FA, Olson LK, Vela NP and Caruso JA. Chromium speciation by anion-exchange high-performance liquid chromatography with both inductively coupled plasma atomic emission spectroscopic and inductively coupled plasma mass spectrometric detection. Journal of Chromatography A.1995;712:311-320. [36] Chang YL and Jiang SJ. Determination of chromium species in water samples by liquid chromatography-inductively coupled plasma-dynamic reaction cell-mass spectrometry. J. Anal. At. Spectrom. 2001;16:858-865. [37] Vladimir J.Z. Speciation of Hexavalent Chromium in Welding Fumes Interference by Air Oxidation of Chromium. Am. Ind. Hyg. Assoc. J. 1985;46(6):327-331. [38] 行政院勞工委員會標準分析參考方法2312,鉻酸。2002。 [39] Eller PM, Editor, NIOSH Manual of Analytical Methods(NMAM). 4th ed. National Institute of Occupational Safety and Health 1994. [40] Trace element speciation for environment, food and health, L. EBDON et al,. Chapter 22, 315-329. [41] Yarong L, Narayan KP, Roy F and Gray KC. Low. Selective determination of airborne hexavalent chromium using inductively coupled plasma mass spectrometry.Talanta 2002;57:1143-1153. [42] Instrumental Analysis, fifth edition, SKOOG. [43] 行政院國家科學委員會精密儀器發展中心:質譜分析術專輯。初版,1992,343-368。 [44] Ou-Yang GL and Jen JF, Simultaneous preconcentration of chromium(III) and chromium(VI) prior to speciation analysis. Analytica Chimica Acta 1993;00:ACA15446 [45] Jen JF and Chen CS, Determination of metal ions as EDTA complexes by reversed-phase ion-pair liquid chromatography. Analyica Chimica Acta 1992;270:55-61. [46] Chang YL and Jiang SJ, Determination of chromium in water and urine by reaction cell inductively coupled plasma mass spectrometry. J. anal. At. Spectrom. 2001;16:1434-1438. [47] Vonderheride AP, Meija J, Tepperman K, Puga A, Pinhas AR, States JC and Caruso JA. Retention of Cr(III) by high-performance chelation ion chromatography interfaced to inductively-coupled plasma mass spectrometric detection with collision cell. Journal of Chromatography A. 2004;1024:129-137. [48] Woods G and McCurdy Ed. Interference-Free Semiquantitative Analysis Using the Agilent 7500ce ICP-Ms. Agilent Technologies 2004. [49] Steve Wilbur and Emmett Soffey. Performance Characteristic of the Agilent 7500ce-The ORS Advantage for High Matrix Analysis. Agilent Technologies 2004. [50] 潘致弘,電鍍業勞工鉻金屬生物性健康指標之研究。勞工安全衛生研究報告M363 1998。 [51] Ashley K, Howe AM, Demange M and Nygren O. Sampling and analysis considerations for the determination of hexavalent chromium in workplace air. J. Environ. Monit. 2003;5:707-716. [52] Hazelwood KJ. Drake PL, Ashley K and Marcy D. Field Method for the Determination of Insoluble or Total Hexavalent Chromium in Workplace Air. Journal of Occupational and Environmental Hygiene 2004;1:613-619. [53] Health and Safety Excutive Methods for the Determination of Hazardous Substances:Hexavalent chromium in chromium plating mists-colorimetric field method using 1,5-diphenylcarbazide, MDHS 52/3 HSE Books April 1998. [54] U.S. NIOSH, Chromium #7703. [55] 行政院勞工安全衛生研究所,作業環境有害物採樣分析參考方法驗證程序。第二版,2002。 | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/35809 | - |
dc.description.abstract | 自1797年法國化學家發現鉻,開啟了鉻在工業上使用的歷史序幕。其廣泛的運用在各大工業中,也因此鉻的職業暴露所造成的危害為人所注目。而自然界中主要以三價鉻及六價鉻的形式存在,三價鉻為人體必須微量元素但六價鉻卻為已確定人類致癌物,在此對人體健康危害差距極大的情況下,將三價鉻及六價鉻分開檢測確是必要的。
假以美國職業安全衛生署(OSHA)預定在2005年將容許濃度降低一百倍為0.001 mg/m3,我國勞工委員會(CLA)也考慮降低容許濃度。當法規標準降低前,經考量其是否足夠信度、感度之量測方法,在整體職業衛生上是很重要的一環。目前傳統分析方法中常用的是光譜分析法,容易受到環境中常見陽離子的光譜干擾而高估環境暴露,因此NIOSH METHOD 7703中提出使用強陰離子交換樹脂固相萃取的方式將此干擾降低,可獲致較佳的分析結果。經本文作者簡化方法後,NIOSH METHOD 7703方法之偵測極限可達0.0022 μg/mL,可適用的樣品濃度範圍為0.11~6.67 μg/mL,相當於以流速2 mL/min採樣八小時之濃度為0.11~6.95 mg/m3。且本方法仍可確實將三價鉻陽離子分離出,僅六價鉻(CrO42-)進行分析定量。 又為繼續提高靈敏度,本研究也使用超音波震盪/陰離子交換管柱的高效能液相層析/感應耦合電漿質譜法將三價鉻及六價鉻分離,並且將偵測範圍降低至μg/L。利用碰撞氣體控制質譜分析上的干擾以提供敏感度、準確度較高的方法。在使用氦氣碰撞模式下有最佳的偵測極限,三價鉻與六價鉻分別為0.21 μg/L與0.26 μg/L,檢量線濃度為1~100 μg/L。在濾紙標準添加法中,以1 M NaOH浸泡過之PVDF濾紙同時添加三價鉻及六價鉻,在每個樣品含量低於250 ng時,兩者回收率分別可達88%及103%。顯示以此濾紙同時採集三價鉻及六價鉻效果遠較PVC及MCE濾紙佳。 | zh_TW |
dc.description.abstract | Since 1797, L. N. Vauquelin discovered chromium. It was used in industries until now. Chromium is used widly in industries. AS a result, the occupational exposure to chromium frequently occurs in work place. Trivalent chromium and hexavalent chromium are the predominant chromium species in the natural environment. Trivalent chromium is known to be an essential trace element, on the other hand, haxavalent chromium is determined as a carcinogenic substance. Due to the difference in the human health effect between trivalent and hexavalent chromium . It is obvious that speciation is necessary.
Occupational Safety and Health Administration (USA, OSHA) will decrease hexavalent chromium PEL-TWA from 0.1 mg/m3 to 0.001mg/m3 in workplace air. And Council Labor Affiar in Taiwan (CLA) considers to follow this step.Before decresing the regulation level, we should consider that is analyse method sensitivity enough? It’s the important part of occupational health. The UV/VIS of traditional speciation methods is usually be influenced by the cations in workplace air, and results in over estimation of occupational exposure assessment. The NIOSH METHOD 7703 uses strong anion exchange-solid phase extract cartridges to control cation confounding to get a better result.After the modification of NIOSH METHOD 7703, MDL is 0.0022 μg/mL and adaptable sample concentration range is 0.11~6.67 μg/mL. Just equal to field concentraction grange 0.11~6.95 mg/m3 of sampling for 8 hours at 2 mL/min flow rate. This method can also separate trivalent chromium from CrO42- clearly. In addition, UE/HPLC/ICP-MS equipped with anion exchange column to speciate Cr(III) and Cr(VI) in the μg/L level. H2 and He were used as collision gas in the ICP-MS detection to reduce the interference of multiatomic ions for Cr-52 ion monitoring. The results indicated that the He mode provided better reduction of multiatomic ion interference, where the calibration curve is between 1 to 100 μg/L. Trivalent chromium and hexavalent chromium’s detection limits are 0.21 μg/L and 0.26 μg/L. In filter spike test, we spiked Cr(III) and Cr(VI) on PVDF filters that were soaking in 1 M NaOH at the same time. As each sample contains below 250 ng, both of Cr(III) and Cr(VI) recovery can reach to 88% and 103%. The result indicated PVDF filter is better than PVC and MCE filter. | en |
dc.description.provenance | Made available in DSpace on 2021-06-13T07:11:18Z (GMT). No. of bitstreams: 1 ntu-94-R92844009-1.pdf: 995962 bytes, checksum: c66a007a413e7dc310d8d61e5d666c89 (MD5) Previous issue date: 2005 | en |
dc.description.tableofcontents | 摘 要 I
ABSTRACT V 目錄 VII 表目錄 X 圖目錄 XII 第一章、緒論 1 第一節、研究背景 1 第二節、研究目的 2 第三節、研究架構 3 第二章、文獻探討 4 第一節、鉻暴露相關作業環境干擾因子初探 4 第二節、六價鉻暴露評估相關研究 5 第三節、鉻作業環境管制標準 7 第四節、鉻相關之健康效應 7 第一項、三價鉻 8 第二項、六價鉻 8 第五節、鉻的毒物動力學 9 第一項、吸收與分佈 10 第二項、代謝 10 第三項、移除 11 第六節、含鉻空氣樣品前處理 11 第七節、鉻物種分析方法 13 第三章、材料與方法 19 第一節、藥品及試劑 19 第二節、器材 20 第三節、儀器分析條件 21 第一項、可見光分光光度計 21 第二項、高效能液相層析儀 21 第三項、感應耦合電漿質譜儀 21 第四節、固相萃取/可見光分光光度儀分析方法建立 22 第一項、尋找最佳化分析條件 22 第二項、檢量線製備及方法偵測極限 23 第三項、濾紙標準添加法回收率測試 24 第四項、三價鉻陽離子干擾測試 24 第五節、高效能液相層析儀/感應耦合電漿質譜儀---鉻物種分析方法建立 25 第一項、尋找最佳化分析條件 25 第二項、感應耦合電漿質譜儀干擾控制測試 26 第三項、檢量線配製及方法偵測極限 26 第四項、濾紙添加回收率之測試 27 第五項、品保/品管(QA/QC) 28 第四章、結果 29 第一節、固相萃取/可見光分光光度儀-六價鉻最佳化分析條件 29 第一項、六價鉻特性吸收波長 29 第二項、每支萃取管中強陰離子樹酯含量 29 第三項、萃取管活化條件 30 第四項、萃取溶液濃度對六價鉻固相萃取回收率的影響 30 第五項、洗滌流速對六價鉻固相萃取回收率的影響 31 第六項、洗滌溶液體積對六價鉻固相萃取回收率影響 32 第七項、檢量線及偵測極限 32 第八項、分析方法及變異係數 32 第九項、三價鉻陽離子干擾測試 33 第二節、超音波震盪萃取/高效能液相層析儀/感應耦合電漿質譜儀---鉻物種分析方法建立 34 第一項、Cr(III)-EDTA螯合條件 34 第二項、高效能液相層析儀鉻物種分離條件 35 第三項、感應耦合電漿質譜儀鉻物種定量分析條件 35 第四項、濾紙標準添加法回收率測試 39 第五項、分析方法變異係數及樣品穩定度測試 40 第六項、品保及品管(QA/QC) 41 第五章、討論 42 第一節、固相萃取/可見光分光光度計 六價鉻分析方法 42 第二節、超音波震盪萃取/高效能液相層析儀/感應耦合電漿質譜儀---鉻物種分析方法建立 44 第六章、結論與建議 51 第一節、固相萃取/可見光分光光度計-六價鉻分析方法 51 第二節、超音波震盪萃取/高效能液相層析儀/感應耦合電漿質譜儀---鉻物種分析方法建立 51 參 考 文 獻 53 | |
dc.language.iso | zh-TW | |
dc.title | 空氣中六價鉻及三價鉻
分析方法研究 | zh_TW |
dc.title | Determination of Airborne Hexavalent and Trivalent Chromium | en |
dc.type | Thesis | |
dc.date.schoolyear | 93-2 | |
dc.description.degree | 碩士 | |
dc.contributor.coadvisor | 陳家揚 | |
dc.contributor.oralexamcommittee | 謝俊明,毛義方 | |
dc.subject.keyword | 六價鉻,固相萃取,紫外光分光光度計,高效能液相層析儀,感應耦合電漿質譜儀,氦氣碰撞模式, | zh_TW |
dc.subject.keyword | hexavalent chromium,Strong-Anion Exchange Solid Phase Extraction,UV/VIS,HPLC,ICP-MS,Helium collision mode, | en |
dc.relation.page | 92 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2005-07-27 | |
dc.contributor.author-college | 公共衛生學院 | zh_TW |
dc.contributor.author-dept | 環境衛生研究所 | zh_TW |
顯示於系所單位: | 環境衛生研究所 |
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