查询词典 toxicity

Later, some animal toxicity studies confirmed that benzidine can induce bladder tumor.

联苯胺类染料进入人体之后，通常会还原成自由态的联苯胺，进而增加致癌的可能性。

Exposure ecological risks of benzo pyrene to species in water, soil and sediment were investigated based on distributions of concentrations derived from the modeling and acute toxicity data for tested species from literature.

将根据上述研究得到的各环境介质暴露浓度分布及该化合物对实验生物急性毒性数据分析了苯并芘在天津污灌区水体、土壤和沉积物三种环境介质中的生态风险性。

Results showed that, within the test concentrations limits, total P450 content and SOD activity were very sensitive to the toxicity of Benzo pyrene. POD activity was elevated only when earthworms exposed to the maximum BaP concentration 10^(-2mgmL^(-1). CAT activity did not show any response to BaP exposure.

结果表明，在供试质量浓度范围内，蚯蚓体内P450含量和SOD活性与苯并芘污染胁迫存在明显的响应关系，POD活性在BaP的最大暴露质量浓度下10^(-2mgmL^(-1)被显著诱导，而CAT活性对BaP暴露无明显的指示作用。

Methods Field trial was carried out to observe the germicidal efficacy of polyhexamethylene biguanide compound disinfection solution, and toxicity by mouth and skin irritation test were performed.

采用悬液定量杀菌试验、皮肤、手、物体表面现场消毒试验方法、经口毒性、皮肤刺激实验方法。

CSF UCB is a reliable indicator in diagnosing bilirubin encephalopathy. The ratio of B/A is a more sensitive indicator of bilirubinic toxicity than serum UCB.

CSF中UCB可作为胆红素脑病诊断可靠指标；B/A作为胆红素毒性指标较血UCB更有意义。

Methods: the toxicity reaction and impaired degree after intraperitoneally injecting scu were observed by detecting indexes of hematology, hematological biochemics and pathohistology.

通过血液学、血液生物化学和病理组织学检查，观察scu对大鼠的毒性反应及程度。

A marine bioluminescent bacterium, strain DH132, was selected as the test organism in chloramphenicol toxicity test.

利用药敏纸片法，从本实验室保存的发光细菌中筛选出一株对氯霉素敏感的细菌DH132。

The degradation of PAHs at 0.03, 0.3, and 3 mg/g soil, either added singly or as mixtures, were evaluated for their evolved CO2 in Biometer flasks. The contaminated soil was later Soxhlet extracted with hexane. The extracts were evaporated, redissolved in dimethyl sulfoxide, and subjected for Microtox assay and Medaka embryo toxicity test. The evolved CO2 from singly PAHs addition was correlated with concentration gradient.

根据结果显示，受单一PAHs污染土壤之降解量，以CO2累积量表示，两环之Naphthalene其降解量为最多，在低浓度0.03 mg PAHs/g soil时，有所谓的诱引作用产生；受混合PAHs污染土壤之降解量，以Naphthalene对於Phenanthrene的刺激作用为最大；在复育实验方面，以添加苯酸之CO2累积量为最高，单就界面活性剂而言，则以Tween 80的表现为最佳。

objective:to observe the acute toxicity and the death status of diffe rent solvent extracts of blumea ripariadc. by ig in mice.

目的：观察滇桂艾纳香药材用不同溶剂提取的浸膏灌胃给予小鼠后产生的急性毒性反应和死亡情况。

Objective: To observe the effect of the herbicide butachlor on myocardial contracts dint and myocardial enzymogram of Bufo bufo gargarizans, and to study physiological toxicity of herbicide butachlor on myocardial of Bufo bufo gargarizans.

目的：观察除草剂丁草胺对蟾蜍心肌收缩力和心肌酶谱的影响，探讨除草剂丁草胺对蟾蜍心肌的生理毒性。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。