Díaz J, Higuera-Ruiz R, Elorza J, Irabien A, Ortiz I
Departamento de Ingeniería Química y Química Inorgánica, Universidad de Cantabria, Avda. los Castros, s/n, 39005 Santander, Spain.
Chemosphere. 2007 Mar;67(3):623-9. doi: 10.1016/j.chemosphere.2006.08.034. Epub 2006 Dec 12.
Distribution of butyltin compounds (BTs) and derivatives (monobutyltin, MBT; dibutyltin, DBT and tributyltin, TBT) was analysed in Crassostrea gigas oyster shells and the sediments trapped in the shell chambers, from two different estuaries in Cantabria (Northern Spain), with very different environmental conditions, where previous data have not been reported. Inorganic tin analysis in oyster shells was performed in order to study the degradation of BTs. Shell thickening and losses in biological growth are related with the presence of TBT, and were determined using three morphological indexes. Total BTs concentrations, expressed as Sn, ranged from 18.0 ng g(-1) to 176.7 ng g(-1) in sediments, and from 2.4 ng g(-1) to 11.1 ng g(-1) in oyster shells. Total inorganic tin concentrations ranged from 1775.0 ng g(-1) to 4781.3 ng g(-1) in oyster shells. The amount of BTs in oyster shells has been associated with the concentrations in the sediments trapped in the shell chambers. Partition coefficients between oyster sediments and oyster shells show the affinity of BTs by the sediments and the higher inorganic tin in oyster shells does not seem to be related to the BTs pollution.
对来自西班牙北部坎塔布里亚两个环境条件差异很大且此前未报道过相关数据的不同河口的巨蛎（Crassostrea gigas）牡蛎壳及其壳腔中捕获的沉积物中的丁基锡化合物（BTs）及其衍生物（单丁基锡，MBT；二丁基锡，DBT和三丁基锡，TBT）的分布进行了分析。对牡蛎壳中的无机锡进行分析以研究BTs的降解情况。壳增厚和生物生长损失与TBT的存在有关，并使用三个形态学指标进行测定。沉积物中以锡表示的总BTs浓度范围为18.0 ng g(-1)至176.7 ng g(-1)，牡蛎壳中为2.4 ng g(-1)至11.1 ng g(-1)。牡蛎壳中总无机锡浓度范围为1775.0 ng g(-1)至4781.3 ng g(-1)。牡蛎壳中BTs的含量与壳腔中捕获的沉积物中的浓度有关。牡蛎沉积物与牡蛎壳之间的分配系数表明沉积物对BTs具有亲和力，并且牡蛎壳中较高的无机锡似乎与BTs污染无关。
