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| 1 | Potential release of hydrogen fluoride from domestic coal in endemic fluorosis area in Guizhou,China显示文摘Almost half of the total rural area of Guizhou Province and many regions within the 11 adjacent provinces in southwestern China have a long history(at least 70 years) of endemic fluorosis,including dental fluorosis and osteofluorosis along with its associated deformities and disabilities.Over decades of research,this specific type of endemic fluorosis has been defined as coal-burning fluorosis,which is distinct from drinking-water fluorosis.It is generally acknowledged that indoor burning and combustion of high-fluorine coal leads to food contamination,and fluorine then enters the human body.However,the exact chemical form of fluorine during its release and transfer to the body is still unknown.In the present study,21 domestic coal samples from outcrop and semi-outcrop coal collected in five villages with fluorosis were analyzed by time-of-flight secondary ion mass spectrometry(TOF-SIMS).The total mass fraction of sulfur in the samples ranged from 0.24%-5.58% and total fluorine content ranged 90.2-149.2 mg/kg.H3O+,H2SO4+ and HSO4-were detected in the samples by TOF-SIMS,which indicated that sulfuric acid hydrate(H2SO4.H2O) was present in the samples.F-was detected in all of these,which suggested the samples contain ionic fluorine compounds.Under certain circumstances,such as heating or burning,the prevalence and coexistence of the acid(H2SO4.H2O) and base(F-) would lead to a neutralization reaction producing volatile hydrogen fluoride(HF,bp = 19.5℃).This would be the chemical form of fluorine released from the coal.Further studies using HF and SO2 test tubes on headspace gas over coal samples heated to 200℃ in the laboratory and on headspace gas over stoves or chimney tops at rural residences confirmed the release of HF. | LIANG HanDong LIANG YanCi GARDELLA Joseph A. Jr HE Ping YATZOR Brett p | 2011 | Chinese Science Bulletin2011，56，22： | 12 |
| 2 | 贵州氟中毒病区燃煤的潜在氟化氢释放显示文摘采用飞行时间二次离子质谱(TOFSIMS)分析了21件煤样,它们取自贵州普安和普定等地的5个氟中毒地方病流行自然村,总硫和总氟含量分别为0.24%~5.58%(质量分数)和90.2~149.2mg/kg,系日常生活用燃煤,出产于地表及临近地表,故曾遭一定程度风化.全部煤样被检出H3O+,H2SO4+,HSO4-,F-及K+和Na+等质谱特征离子,前三者直接标志了水合硫酸(H2SO4H2O)的存在,后者指出了氟呈盐的形式.结论是当地生活燃煤天然含有酸(H2SO4H2O)与碱(F-).推论是此酸与碱在加热或燃烧条件下必将发生化学中和反应而释放出氟化氢(HF)(BP19.5℃).室内200℃加热煤试验结果和普安县青山乡等农户煤炉现场检验结果均直接再现氟化氢释放. | 梁汉东 梁言慈 GARDELLA Joseph A. Jr. 何平 YATZOR Brett P. | 2011 | 科学通报2011，56，27： | 4 |
| 3 | A mutant Escherichia coli sigma 70 subunit of RNA polymerase with altered promoter specificity显示文摘 | Gardella T Moyle H Susskind M M | 1989 | J Mol Biol1989，206，： | 1 |
| 4 | The nuclear protein HMGB1 is secreted by monocytes via a non-classical,vesiclemediated secretory pathrway显示文摘 | Gardella S Andrei C Ferrera D | | 0，，10： | 1 |
| 5 | A new multilevel PWM method: a theoretical analysis显示文摘 | CARRARA G GARDELLA S MARCHESONI M | 1992 | IEEE Trans on Power Electronics1992，7，3： | 1 |
| 6 | Effect of maternal herpes simplex vires (HSV) serostatus and HSV type on risk of neonatal herpes 显示文摘 | Brown EL Gardella C Malm G | 2007 | Acta Obstet Gynecol Scand2007，86，5： | 1 |
| 7 | Parathrold hormone (PTH)-(1-14) and- (1-11) analogs conformatianally constrained by -aminoisobutyric acid mediate full agonist responses via the juxtamembrane region of the PTH-1 Receptor显示文摘 | Shimizu N Guo J Gardella TJ | 2001 | J Biol Ghem2001，276，49： | 1 |
| 8 | Autosomal dominant early- onset cortical myoclonus, photic-induced myoclonus, and epilepsy in a large pedigree显示文摘 | Gardella E Tinuper P Marini C | 2006 | Epilepsia2006，47，： | 1 |
| 9 | Identification and sequencing of bacterial r DNAs in culture-negative amniotic fluid from women in premature labor显示文摘 | Gardella C Riley DE Hitti J | 2004 | Am J Perinatol2004，21，6： | 1 |
| 10 | A new multilevel PWM method: a theoretical analysis显示文摘 | Carrara G Gardella S Marchesoni M | 1992 | IEEE Transactions on Power Electronics1992，7，3： | 1 |
| 11 | Surface study of diblock copolymers of poly (dimethylsiloxane) and nylon -6 by electron spectroscopy for chemical analysis 显示文摘 | CHEN X GARDELLA J COHEN R | 1994 | Macromolecules1994，27，8： | 1 |
| 12 | Surface modification of polymers by blending siloxaneblock copolymers显示文摘 | Chen X Gardella J A | 1994 | Macromolecules1994，27，12： | 1 |
| 13 | The nuclearprotein HMGB1 is secreted by monocytes via a non-classical,vesicle-mediated secretory pathway 显示文摘 | GARDELLAS ANDREI C FERRERAD | 2002 | EMBO Rep2002，3，10： | 1 |
| 14 | Patterned Neuronal Attachment and Outgrowth on Surface Modified,Electrically Changed Fluoropolymer Substrates显示文摘 | Valentini R F Vargo T G Gardella J A | 1993 | J Biomater Sci Polym Ed1993，5，12： | 1 |
| 15 | Multiple human papillomavirus infection and high grade cervical Intraepithelial Neoplasia among women with cytological diagnosis of atypical squamous cells of Undetermined significance or low grade squamous intraepithelial lesions显示文摘 | Spinillo A Gardella B Roccio M | 2009 | Gynecologic Oncology2009，113，： | 1 |
| 16 | In vitro hydrolytic surface degradation of poly( glycolic acid) : role of the surface segregated amorphous region in the induction period of bulk erosion显示文摘 | Lee J W Gardella J A | 2001 | Macromolecules2001，34，： | 1 |
| 17 | The nuclear protein HMGB1 is secreted by monocyte via a non-classical, vesicle-mediated secretory pathway 显示文摘 | Gardella S Andrei C Ferrera D | 2002 | EMBO Rep2002，3，1： | 1 |
| 18 | In Vitro Hydrolytic Surface Degradation of Poly( glycolic acid) : Role of the Surface Segregated Amorphous Region in the Induction Period of Bulk Erosion显示文摘 | Lee J W Gardella J A Jr | 2001 | Macromolecules2001，34，12： | 1 |
| 19 | New stereoeomplex PLA-based fibers: effect of POSS on polymer functionalization and properties 显示文摘 | MONTICELLI O PUTTI M GARDELLA L | 2014 | Macromolecules2014，47，14： | 1 |
| 20 | Lead exposure in pregnancy:A review of the literature and argument for routine prenatal screening显示文摘 | Gardella C | 2001 | Obstet Gynecol Surv2001，56，4： | 1 |
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