应用Tessier与BCR(Bureau Community of Reference)形态分析方法以及固体废物浸出毒性浸出法-醋酸缓冲溶液法(HJ/T300-2007)研究了磷酸二氢钠(MSP)对土壤中铅赋存形态以及浸出浓度的影响。研究表明:Tessier法和BCR法均能证实随着磷酸二...应用Tessier与BCR(Bureau Community of Reference)形态分析方法以及固体废物浸出毒性浸出法-醋酸缓冲溶液法(HJ/T300-2007)研究了磷酸二氢钠(MSP)对土壤中铅赋存形态以及浸出浓度的影响。研究表明:Tessier法和BCR法均能证实随着磷酸二氢钠的施加,实验土壤中铅从活泼态向稳定态转化;Tessier法测定的生物活性系数(MF)值较BCR法更为保守;通过线性回归分析发现BCR法测定的MF值相关系数为0.988,优于Tessier法的相关系数0.895;Tessier法与BCR法对污染土壤中铅形态的提取均具有较高的回收率;磷酸二氢钠能有效降低实验土壤中铅的浸出浓度可达98.62%。展开更多
Surface sediments can integrate a wide variety of information of seawater in marginal seas, e.g., the Quaternary sedimentary shelf such as the East China Sea（ECS） and Yellow Sea（YS）. The Tessier and BCR sequential...Surface sediments can integrate a wide variety of information of seawater in marginal seas, e.g., the Quaternary sedimentary shelf such as the East China Sea（ECS） and Yellow Sea（YS）. The Tessier and BCR sequential extraction procedures（SEPs） have been widely applied for extraction of various geochemical phases from sediments. To choose a suitable SEP for phase extraction of sediments from the above Quaternary sedimentary shelf, efficiency and selectivity experiments were conducted on typical individual minerals and the applicability of each SEP was assessed for natural sediments（the natural sediment standard GSD-9 and three surface sediment samples）. The geochemical represented elements（Ca, Fe, Mn, Al, and Ti） were measured using both SEPs. Both SEPs have good dissolution efficiency and selectivity for the targeted geochemical phases; the optimized extractant volume for each fraction was determined. The Tessier SEP is particularly recommended for the study of adsorption-desorption process. The application of the Tessier SEP to surface sediments can furnish valuable information, including the productivity conditions（via the reducible fraction Mn） and sedimentary environments（via the carbonate fraction Ca）. These results confirm that the Tessier SEP is suitable for elemental fractionation in sediments from the Chinese continental shelf.展开更多
Bifid nose is a rare congenital abnormality and its surgical correction is difficult. We represent a case of bifid nose with mild nasal deformity without cerebral or lip deformity. We performed rhinoplasty with a kind...Bifid nose is a rare congenital abnormality and its surgical correction is difficult. We represent a case of bifid nose with mild nasal deformity without cerebral or lip deformity. We performed rhinoplasty with a kind of the forked flap at one year of age and the appearance improved.展开更多
We report a case of a 37-year-old Japanese female. She had a Tessier no. 8 craniofacial cleft and an orbital lipoma in the lateral canthal region. Excisional surgery and pathological examination revealed a genuine lip...We report a case of a 37-year-old Japanese female. She had a Tessier no. 8 craniofacial cleft and an orbital lipoma in the lateral canthal region. Excisional surgery and pathological examination revealed a genuine lipoma. No other case has been reported in the literature. Here, we present our case of a rare genuine lipoma located in lateral canthal region of the Tessier no. 8 cleft.展开更多
Background: Median cleft of mandible and lower lip is a rare anomaly [1]. Only a few cases have been reported in literature with different variations till now. Herein we report a patient with Tessier 30 cleft associat...Background: Median cleft of mandible and lower lip is a rare anomaly [1]. Only a few cases have been reported in literature with different variations till now. Herein we report a patient with Tessier 30 cleft associated with complete duplication of tongue. Aim: We herein report this rare variant as it posed special challenges for its management by virtue of its uniqueness, late presentation and limited affordability of patient for standard treatment. Case Report: A 12 years old female reported to us with a chief complaint of a midline gap in the lower lip and mandible since birth. On examination under anaesthesia, we found that tongue was not bifid. There was complete duplication of the tongue. The case was planned for staged repair of the defect. In the same sitting, a repair of the soft tissues in the midline was performed. Conclusion: There are no specific guidelines in literature for management of such cases. This makes all these cases worth for reporting in order to guide treating surgeons.展开更多
文摘应用Tessier与BCR(Bureau Community of Reference)形态分析方法以及固体废物浸出毒性浸出法-醋酸缓冲溶液法(HJ/T300-2007)研究了磷酸二氢钠(MSP)对土壤中铅赋存形态以及浸出浓度的影响。研究表明:Tessier法和BCR法均能证实随着磷酸二氢钠的施加,实验土壤中铅从活泼态向稳定态转化;Tessier法测定的生物活性系数(MF)值较BCR法更为保守;通过线性回归分析发现BCR法测定的MF值相关系数为0.988,优于Tessier法的相关系数0.895;Tessier法与BCR法对污染土壤中铅形态的提取均具有较高的回收率;磷酸二氢钠能有效降低实验土壤中铅的浸出浓度可达98.62%。
基金The National Natural Science Foundation of China under contract Nos 41530965,41276071 and 41003052the JSPS KAKENHI Grants under contract Nos JP26241009 and JP15H00973the Central Universities under contract Nos 201562008 and 201762031
文摘Surface sediments can integrate a wide variety of information of seawater in marginal seas, e.g., the Quaternary sedimentary shelf such as the East China Sea（ECS） and Yellow Sea（YS）. The Tessier and BCR sequential extraction procedures（SEPs） have been widely applied for extraction of various geochemical phases from sediments. To choose a suitable SEP for phase extraction of sediments from the above Quaternary sedimentary shelf, efficiency and selectivity experiments were conducted on typical individual minerals and the applicability of each SEP was assessed for natural sediments（the natural sediment standard GSD-9 and three surface sediment samples）. The geochemical represented elements（Ca, Fe, Mn, Al, and Ti） were measured using both SEPs. Both SEPs have good dissolution efficiency and selectivity for the targeted geochemical phases; the optimized extractant volume for each fraction was determined. The Tessier SEP is particularly recommended for the study of adsorption-desorption process. The application of the Tessier SEP to surface sediments can furnish valuable information, including the productivity conditions（via the reducible fraction Mn） and sedimentary environments（via the carbonate fraction Ca）. These results confirm that the Tessier SEP is suitable for elemental fractionation in sediments from the Chinese continental shelf.
文摘Bifid nose is a rare congenital abnormality and its surgical correction is difficult. We represent a case of bifid nose with mild nasal deformity without cerebral or lip deformity. We performed rhinoplasty with a kind of the forked flap at one year of age and the appearance improved.
文摘We report a case of a 37-year-old Japanese female. She had a Tessier no. 8 craniofacial cleft and an orbital lipoma in the lateral canthal region. Excisional surgery and pathological examination revealed a genuine lipoma. No other case has been reported in the literature. Here, we present our case of a rare genuine lipoma located in lateral canthal region of the Tessier no. 8 cleft.
文摘Background: Median cleft of mandible and lower lip is a rare anomaly [1]. Only a few cases have been reported in literature with different variations till now. Herein we report a patient with Tessier 30 cleft associated with complete duplication of tongue. Aim: We herein report this rare variant as it posed special challenges for its management by virtue of its uniqueness, late presentation and limited affordability of patient for standard treatment. Case Report: A 12 years old female reported to us with a chief complaint of a midline gap in the lower lip and mandible since birth. On examination under anaesthesia, we found that tongue was not bifid. There was complete duplication of the tongue. The case was planned for staged repair of the defect. In the same sitting, a repair of the soft tissues in the midline was performed. Conclusion: There are no specific guidelines in literature for management of such cases. This makes all these cases worth for reporting in order to guide treating surgeons.
