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Polybrominated diphenyl ethers in chicken tissues and eggs from an electronic waste recycling area in southeast China

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Journal of Environmental Sciences 2011年第1期23卷 133-138页

作者： Xiaofei Qin Zhanfen Qin Yan Li Yaxian zhao Xijuan Xia Shishuai Yan Mi Tian xingru zhao Xiaobai Xu Yongjian Yang State Key Laboratory of Environmental Chemistry and Ecotoxicology Research Center for Eco-environmental Sciences Chinese Academy of Sciences Beijing 100085 China Chinese Research Academy of Environmental Sciences Beijing 100012 China Taizhou No. 1 Middle School Taizhou 318000 China

The levels and distributions of polybrominated diphenyl ethers （PBDEs） in chicken tissues from an electronic waste （e-waste） recycling area in southeast China were investigated. Human dietary intake by local residents via chicken muscle and eggs was estimated. The mean PBDEs concentrations in tissues ranged from 15.2 to 3138.1 ng/g lipid weight （lw） and in egg the concentration was 563.5 ng/g lw. The results showed that the level of total PBDEs （∑PBDEs） in the chicken tissue was 2-3 orders of magnitude higher than those reported in the literature. The large difference of ∑PBDEs concentrations between tissues confirmed that the distribution of PBDEs in tissues depend on tissue-specificity rather than the ＂lipid-compartment＂. BDE-209 was the predominant congener （82.5%- 94.7% of ∑PBDEs） in all chicken tissues except in brain （34.7% of ∑PBDEs）, which indicated that deca-BDE （the major commercial PBDE formulation comprising 65%-70% of total production） was major pollution source in this area and could be bioaccumulated in terrestrial animals. The dietary PBDEs intake of the local residents from chicken muscle and egg, assuming only local bred chickens and eggs were consumed, ranged from 2.2 to 22.5 ng/（*** body weight （bw）） with a mean value of 13.5 ng/（day-kg bw）, which was one order of magnitude higher than the value reported in previous studies for consumption of all foodstuffs.

关键词： polybrominated diphenyl ethers chicken egg bioaccumulation tissue distribution exposure risk

Distribution characteristics of poly-and perfluoroalkyl substances in the Yangtze River Delta

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Journal of Environmental Sciences 2017年第11期29卷 97-109页

作者： Binghui Zheng Xiaolei Liu Rui Guo Qing Fu xingru zhao Shanjun Wang Sheng Chang Xing Wang Mengjiao Geng Guang Yang State Environmental Protection Key Laboratory of Source Water Protection Chinese Research Academy of Environmental Sciences College of Chemistry and Materials Science Hebei Normal University

In this work, a method was developed and optimized for the analysis of polyfluoroalkyl and/or perfluoroalkyl substances（PFASs） content in surface water and sediment samples with high instrumental response and good separation. Surface water and sediment samples were collected from the Yangtze River Delta（YRD） to analyze the distribution characteristics of perfluoroalkyl carboxylic acids（PFCAs）, perfluoroalkane sulfonic acids（PFSAs）, perfluoroalkyl phosphonic acids（PFPAs）, perfluoroalkyl phosphinic acids（PFPiAs）, and polyfluoroalkyl phosphoric acid diesters（di PAPs）. The results showed that the total concentrations of PFCAs and PFSAs in YRD varied from 31 to 902 ng/L. PFCAs（≥ 11 carbons） and PFSAs（≥ 10 carbons atoms） were not detected in any surface water samples. The mean concentrations of all PFCAs and PFSAs in surface water from the sampling areas decreased in the following order：Yangtze river（191 ng/L） ≈ Taihu lake（189 ng/L）〉 Huangpu river（122 ng/L） ≈ Qiantang river（120 ng/L）〉 Jiaxing urban river（100 ng/L）. Strong significant（p 〈 0.05） correlations between the concentrations of many of the compounds were found in the sampling areas, suggesting a common source for these compounds. Only perfluorooctanoic acid（PFOA） was observed in all sediment samples, at concentrations varying from 0.02 to 1.35 ng/g. Finally, detection rates of two di PAPs were only 8% and 10%, respectively and the concentration of di PAPs was two to three times lower compared to PFCAs and PFSAs.

关键词： Perfluorinated compounds Polyfluoroalkyl substances Surface water Sediment

Thyroid disruption by technical decabromodiphenyl ether (DE-83R) at low concentrations in Xenopus laevis

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Journal of Environmental Sciences 2010年第5期22卷 744-751页

作者： Xiaofei Qin Xijuan Xia Zhongzhi Yang Shishuai Yan Yaxian zhao Rongguo Wei Yan Li Mi Tian xingru zhao Zhanfen Qin Xiaobai Xu State Key Laboratory of Environmental Chemistry and Ecotoxicology Research Center for Eco-environmental Sciences Chinese Academy of Sciences Beijing 100085 China Chinese Research Academy of Environmental Sciences Beijing 100012 China

Decabromodiphenyl ether （decaBDE）,as a flame retardant,is widely produced and *** study the thyroid disruption by technical decaBDE at low concentrations,Xenopus laevis tadpoles were exposed to technical decaBDE mixture DE-83R （1-1000 ng/L） in water from stage 46/47 （free swimming larvae,system of Nieuwkoop and Faber） to stage ***-83R at concentration of 1000 ng/L significantly delayed the time to metamorphosis （presented by forelimb emergence,FLE）.Histological examination showed that DE83R at all tested concentrations caused histological alterations-multilayer follicular epithelial cell and markedly increased follicle size accompanied by partial colloid depletion and increase in the peripheral colloid vacuolation,in thyroid *** tested concentrations of DE-83R also induced a down-regulation of thyroid receptor mRNA *** results demonstrated that technical decaBDE disrupted the thyroid system in *** *** of polybrominated diphenyl ethers （PBDEs）（sum of 39 congeners） in *** indicated that mean concentrations of total PBDEs in *** exposed to 1,10,100,1000 ng/L were 11.0,128.1,412.1,1400.2 ng/g wet weight,*** that PBDEs burden of *** tadpoles was close to PBDEs levels in amphibians as reported in previous studies,our study has raised new concerns for thyroid disruption in amphibians of technical decaBDE at environmentally relevant concentrations.

关键词： decabromodiphenyl ether Xenopus laevis thyroid disruption metamorphosis thyroid hormone receptor

Ecotoxicological effects of mixed pollutants resulted from e-wastes recycling and bioaccumulation of polybrominated diphenyl ethers in Chinese loach(Misgurnus anguillicaudatus)

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Journal of Environmental Sciences 2009年第12期21卷 1695-1701页

作者： QIN Xiaofei XIA Xijuan LI Yan zhao Yaxian YANG Zhongzhi FU Shan TI-AN Mi zhao xingru QIN Zhanfen XU Xiaobai YANG Yongjian State Key Laboratory of Environmental Chemistry and Ecotoxicology Research Center for Eco-environmental Sciences Chinese Academy of Sciences Beijing 100085 China Taizhou No.1 Middle School Taizhou 318000 China

To understand potential ecotoxicological effects of electrical and electronic equipment waste （e-waste） recycling and polybrominated diphenyl ethers （PBDEs） bioaccumulation in loaches, a semi-field experiment using Chinese loach （Misgurnus anguiUicaudatus） as experimental fish was performed. Larval loaches were kept in net-cage for three months in an e-wastes recycling site and a reference site in Southeastern China. There was significant difference of the survival rate between the loaches from the e-wastes recycling site （27%, 19/70） and from reference site （70%, 49/70）. Histopathological responses were also found in all the livers examined in loaches from the e-wastes recycling site. These results showed that mixed pollutants resulted from e-wastes recycling led to ecotoxicological effects on loaches. The bioaccumulation of polybrominated diphenyl ethers （PBDEs）, the main pollutants in e-waste, in loaches was also studied, the mean concentration of total PBDEs in sediment was 6726.17 ng/g wet weight and in water samples was 4.08 ng/L （dissolved phase）. BDE 209 was the dominant congener in sediment and with relatively high concentration in water. Relatively low concentration of BDE 209 （less than 0.01% of total PBDEs） and high concentration of BDE47 （up to 39.34% of total PBDEs） were detected in loaches.

关键词： e-wastes loach ecotoxicological effects polybrominated diphenyl ethers semi-field experiment

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酸碱染料离子的缔合及等色化

光谱学与光谱分析 1999年第1期19卷 115-117页

作者：丁良赵兴茹河北省职工医学院

本文阐述了等色染料离子对形成的实验方法，等色染料离子对的缔合机理及其形式。用吸收光谱和能级图，从电子理论角度论述了等色染料离子对的缔合效应等色化，溶剂效应等色化机理。列表示出等色染料离子对的高灵敏度，从而证明了等色染... 详细信息

本文阐述了等色染料离子对形成的实验方法，等色染料离子对的缔合机理及其形式。用吸收光谱和能级图，从电子理论角度论述了等色染料离子对的缔合效应等色化，溶剂效应等色化机理。列表示出等色染料离子对的高灵敏度，从而证明了等色染料离子对的萃取光度，浮选光度及萃取荧光光度法是高灵敏度和超高灵敏度的新体系，为金属痕量和超痕量分析开辟了更为宽广的前景。

关键词：等色染料离子对缔合要理等色化萃取光度法

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萃取动力学光谱法测定癌组织中的微量元素

光谱学与光谱分析 2000年第3期20卷 431-433页

作者：赵兴茹张焕弟河北省职工医学院保定071000

本文研究了在 p H9.2～ 9.5氨性缓冲溶液中 ,Cu( )催化 H2 O2 氧化溴酚蓝和丁基罗丹明 B等色染料离子对褪色的新指示反应 ,建立了较为广泛的快速终止催化反应的新方法。本方法测定铜 ,灵敏度为 0 .0 2μg·L- 1 ,线性范围为 0 .1～ 10 ... 详细信息

本文研究了在 p H9.2～ 9.5氨性缓冲溶液中 ,Cu( )催化 H2 O2 氧化溴酚蓝和丁基罗丹明 B等色染料离子对褪色的新指示反应 ,建立了较为广泛的快速终止催化反应的新方法。本方法测定铜 ,灵敏度为 0 .0 2μg·L- 1 ,线性范围为 0 .1～ 10 μg· L- 1。用于直肠癌组织中微量元素铜的测定。

关键词：等色染料离子对铜癌组织萃取动力学光谱法

红枫湖流域表层沉积物中全氟化合物的污染特征

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环境科学研究 2015年第4期28卷 517-523页

作者：刘琰江秋枫韩梅赵兴茹郭睿中国环境科学研究院环境基准与风险评估国家重点实验室国家环境保护饮用水水源地保护重点实验室北京100012

PFCs（perfluorinated compounds,全氟化合物）因具有持久性、生物富集效应和毒性而受到环境科学领域的普遍关注.采用超高效液相色谱-串联质谱联用仪（UPLC-MS/MS）并结合固相萃取的方法,对贵阳市主要饮用水水源地——红枫湖主要入湖支... 详细信息

PFCs（perfluorinated compounds,全氟化合物）因具有持久性、生物富集效应和毒性而受到环境科学领域的普遍关注.采用超高效液相色谱-串联质谱联用仪（UPLC-MS/MS）并结合固相萃取的方法,对贵阳市主要饮用水水源地——红枫湖主要入湖支流及湖区表层沉积物中10种PFCs的质量分数进行了检测,分析了其污染水平、空间分布及组成特征.结果表明,各采样点w（∑PFCs）（10种PFCs的总质量分数）为0.27~1.65 ng/g,其中PFBA（全氟丁酸）、PFPe A（全氟戊酸）、PFOA（全氟辛酸）、PFBS（全氟丁烷磺酸）、PFOS（全氟辛烷磺酸）及PFHx A（全氟己酸）不仅检出率高,而且对各采样点w（∑PFCs）的贡献较大,是红枫湖表层沉积物中主要的PFCs;受湖区水文水动力条件及沉积物有机质的影响,北湖表层沉积物中w（∑PFCs）高于南湖,并且全湖w（∑PFCs）的最高值位于出湖口处,达到1.65 ng/g;红枫湖流域表层沉积物中的w（PFOA）和w（PFOS）分别为0.07~0.51和nd（未检出）~0.16 ng/g,与国内外其他流域相比处于较低水平;大气沉降可能是红枫湖流域PFCs的主要来源.

关键词：全氟化合物沉积物污染特征红枫湖流域

四溴荧光素丁基罗丹明B染料离子对的吸光性质研究

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光谱学与光谱分析 1999年第2期19卷 233-235页

作者：赵兴茹丁良刘保生左本成河北省职工医学院河北大学

本文对四溴荧光素、丁基罗丹明Ｂ各自的吸光性质以及它们形成的离子缔合物的吸光性质进行了研究。测得四溴荧光素与丁基罗丹明Ｂ在ｐＨ７时的缔合比为１２，其Ｋｓｐ＝２．１６×１０－１８。缔合物的萃取率为８４．２％。为进一步研究... 详细信息

本文对四溴荧光素、丁基罗丹明Ｂ各自的吸光性质以及它们形成的离子缔合物的吸光性质进行了研究。测得四溴荧光素与丁基罗丹明Ｂ在ｐＨ７时的缔合比为１２，其Ｋｓｐ＝２．１６×１０－１８。缔合物的萃取率为８４．２％。为进一步研究四溴荧光素、丁基罗丹明Ｂ的萃取光度分析奠定了理论基础。

关键词：四溴荧光素丁基罗丹明B 萃取光度法染料离子对

Bronchoscopic transparenchymal nodule access in the diagnosis and management of pulmonary nodules

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Chinese Medical Journal 2023年第13期136卷 1615-1617页

作者： Quncheng Zhang Xuan Wu Huizhen Yang Ya Sun Ziqi Wang Li Yang Nan Wei Yihua Zhang Yuanjian Yang xingru zhao Felix JF Herth Xiaoju Zhang Department of Respiratory and Critical Care Medicine Zhengzhou University People’s HospitalHenan Provincial People’s HospitalZhengzhouHenan 450003China Xinxiang Medical University XinxiangHenan 453003China Department of Pneumology and Respiratory Care Medicine Thoraxklinik and Translational Lung Research CenterUniversity of HeidelbergHeidelberg D-69126Germany

To the Editor:Transthoracic needle aspiration(TTNA)and bronchoscopy have been the preferred methods for the sampling of pulmonary nodules suspected of lung ***,despite having a higher diagnostic accuracy,TTNA has been associated with a high rate of ***,conventional bronchoscopy with a low rate of pneumothorax has exhibited a low diagnostic yield for peripheral pulmonary nodules,particularly for nodules<2 cm in size or those without a bronchus leading directly to ***,Herth et al[1]developed a novel bronchoscopy technique called bronchoscopic transparenchymal nodule access(BTPNA)under the guidance of Archimedes Virtual Bronchoscopic Navigation(VBN)System for the purpose of accessing pulmonary nodules using a transparenchymal approach without relying on the airway to approach the ***,we systematically reviewed evidence regarding BTPNA to provide general guidance on the safe implementation and development of this novel approach.

关键词： diagnosis needle trans