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。

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）。

Methods: LD50 was determined in mice.

方法：测定小白鼠LD50，观察其急性毒性反应；

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；

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。

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。

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。

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。

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；

Method: Classical LD50 test.

方法：经典的半数致死量LD50测定法。

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。

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；

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。

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；

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。

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。

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。

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）。

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）。

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；

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。

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。

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；

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

致死计量50实验（LD50）也可以被代替。

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）。

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。

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

小鼠口服急性LD（50）约为2g/kg。

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。

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；