Mice were used to determine the safety limitation of solanine in term of the lethal dose 50% ( LD50) ( Expt. IV).

1、

METHODS The toxicity of cantharidin was expressed at lethal dose 50 and biochemical indexes, apparent pharmacokinetic parameters of cantharidin were determined by using acute mortality of mice.

方法用小鼠半数致死量（LD50）及生化指标的变化来表征斑蝥素的毒性，用小鼠急性死亡率法测定斑螫素药物动力学参数。

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2、

A study on the lethal dose 50% of nitrile to mice

腈对小白鼠毒性大小（LD50）的研究

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3、

[ Methods] The death rate, standardized death rate and LA50 were computed in every sample randomly elected from published literatures.

方法按标准随机收集样本，分别计算各样本病死率、烧伤面积标准化病死率和LA50。

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Preliminary Test on the Effect of Antibiotic on the Lethal Concentration 50% of Veliger Larva of Chlamys farreri

抗生素对栉孔扇贝面盘幼虫半致死浓度的初步试验

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5、

Nanoparticles' LD50 exceeded injection's by 13.5% and their stimulus was much lower than injection.

纳米粒的LD50高于注射剂13.5%，同时血管刺激性较TBMS注射剂大大降低。

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6、

RESULTS: We did not get LD50 to mouse and rat, and no chronic toxicity to rabbit skin.

结果：酸枣仁油对大小鼠均未测出LD50，家兔皮肤刺激实验未见急性毒性反应。

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7、

The results show that the mice's LD50 is 21500mg/ kg by oral means.

结果表明，蓖麻分离蛋白的经口LD（50）为21500mg/kg，为无毒物质。

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8、

LD50 value was 29.174 ( 22.306~ 38.158) ml/ kg in the acute toxicity experiment.

急性毒性实验测得LD50值为29.174（22.306～38.158）ml/kg。

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9、

LD50 of 36 kinds of drugs were measured and main pharmacological effect of 40 kinds of drugs were observed.

还测定了36种药物的LD（50）及观察40种药物之主要药理作用，在辐照后3个月时重复检定一次。

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10、

Acute toxic test indicated that the LD50 of CFA was 2.925%/ kg.

急性毒性实验表明本品的LD50为2.925g／kg。

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11、

It's LD50 is 8.67 etc. The authors believe that it is a new virus disease in duck.

对氯仿有抵抗，对鸭胚的LD50为8.67，无血凝性、初步认为本病是一种新鸭病，暂定名为鸭传染性肿头症。

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12、

It is safe according to the acute toxic test ( LD50> 21.5 g/ kg).

急性毒性实验表明受试物安全无毒（LD50＞21.5g／kg）。

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13、

Results LD50 for urea by intragastric administration is 8471 mg/ kg in rats.

结果尿素的大鼠经口LD50为8471mg/kg。

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The LD50 of submicro-emulsion and injection in mice were studied.

考察汉防已甲素亚微乳和注射液对小鼠的LD50值。

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Methods The acute oral LD50 was determined by a single dose limited ingesting of test reagent.

方法采用一次性限量灌胃法测定急性经口LD50；

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RESULTS: The LD50 of mice in the acute toxicity test was four to five times more than the control group.

结果：小鼠急性毒性实验的半数致死剂量（LD50）保健香烟组比原香烟对照组增加了4~5倍；

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17、

Results Oral LD50 for mice was greater than 5 000 mg/ kg calculated by Horn method.

结果采用霍恩法计算聚天冬氨酸小鼠经口半致死量（LD50）大于5000mg/kg；

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18、

Results: The curve of SNP concentrations of LD50 indicated a time-dependent decrease trend.

结果：半数软骨细胞致死的硝普钠浓度呈时间依赖性下降；

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The acute oral LD50 in mice is about 2g/ kg.

小鼠口服急性LD（50）约为2g/kg。

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Results: LD50 in rats and mice were more than 10 g/ kg;

结果：川贝枇杷糖对两种性别小鼠、大鼠经口急性毒性试验，LD50均大于10g/kg，属实际无毒物；

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