LD50

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

最后，利用小鼠试验测定了其毒性和半数致死量，探讨了其在饲料中的安全阈量。

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In the same condition in laboratory, LD50 or LC50 of 3rd instar larva of susceptible strain and Lambda-cyhalothrin resistant strain of beet armyworm were determined.

研究结果如下：1、在室内相同条件下，分别用点滴法和浸叶法测定甜菜夜蛾抗氯氟氰菊酯品系和敏感品系3龄幼虫LD50（ug/头）或LC50值（mg/L）。

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Methods: LD50 was determined in mice.

方法：测定小白鼠LD50，观察其急性毒性反应；

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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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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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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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The acute toxicity test has shown that the LD50 of roasted ginger decoction administered orally is 170.6 ± 1.1g/ kg, but it is over 250g/ kg with dry ginger.

急性毒性试验显示：炮姜LD（50）为170.6±1.1g/kg，干姜250g/kg以上未见死亡。

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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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The results show that LD50 is 5728mg/ kg to mice by mouth being low toxicity;

结果表明小鼠经口LD50为5728mg／kg.属低毒物质；

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Method: Classical LD50 test.

方法：经典的半数致死量LD50测定法。

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The LD50 of o-toluidine in mice by mouth is 755mg/ kg. o-toluidine has lower toxicity.

邻甲苯胺经口半数致死量为755mg／kg，属低毒类。

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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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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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Results Topical grade HA ( HA-T) and food grade HA ( HA-F) are innoxious substance, which acute oral toxicity LD50> 5 000 mg/ kg;

结果外用级HA（HA-T）和食用级HA（HA-F）急性经口毒性LD50>5000mg/kg，属实际无毒物质；

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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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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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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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A SAS program to calculate median lethal dosage ( LD_ ( 50)) of pesticides, named LD50-SAS, was developed based on the algorithms established by Bliss.

基于Bliss概率单位法，编写了用于计算半数致死量（LD50）的SAS程序（LD50-SAS）。

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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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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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The oral acute toxicity test showed LD50 ( medium lethal dose)> 5.5 g/ Kg. Such result demonstrates that the synthesized product is nontoxic according to the classification of acute toxicity standard.

通过对合成的产物进行急性经口毒性试验，发现其经口半数致死量（LD50，medium lethal dose）大于5.5g/Kg，按照急性毒性分级标准确定该依布硒林衍生物属实际无毒级。

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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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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 Lethal Dose 50 test ( LD50) may also be replaced.

致死计量50实验（LD50）也可以被代替。

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To observe the acute toxicity and death of the mice to which calcium nanoparticles were given in maximal dose and obtain the lethal dose 50 ( LD50) or the maximal tolerance dose ( MTD).

观察小鼠一日内给予大剂量钙纳米粒子的急性中毒及死亡情况，得出半数致死量（LD50）或最大耐受量（MTD）。

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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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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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The protective rate of porin to the mice challenged with 500 LD50 murine Salmonella typhi was 70%. The results showed good immunogenicity of STM-porin.

以500LD50鼠伤寒沙门氏菌攻击，其保护率为70%，提示STM－porin具有较强的免疫原性。

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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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