medium tolerance limit

METHODS To test the acute inhaling toxicity of different ingredient shoe mucilages (including toluene and ketone,only toluene and only ester) and observe the LC 50 and the toxic effect on rats.

方法：选择分别含甲苯与丁酮、甲苯及酯类的鞋胶，通过急性吸入毒性实验的方法，观察不同成分鞋胶对小白鼠的半数致死浓度（ＬＣ５０）及毒性作用表现。

Methods LC 50 of eight commercial pesticids were measured on the fourth instar larvae by larva soaked method (recommended by WHO).

方法　药液浸渍法 (WHO推荐方法 ) ,测定Ⅳ龄期幼虫半数致死浓度。

The tests results indicated that the various heavy metals LC50 were Cd 1 612.

试验测得:滤纸接触法对该蚯蚓的半数致死浓度(LC50)分别为Cd1612。

Results The lethal concentration (LC50) was reduced to various degrees while ADM was added with rh-TNFa D3a in the two cells.

结果 ADM加TNF后,在两细胞株中均可明显降低ADM的半数致死浓度。

Methods The dipping method recommended by WHO was used to assay the medium lethal concentration(LC50) of the fourth-instar larvae.

方法采用药液浸渍法,测定淡色库蚊4龄期幼虫的半数致死浓度(LC50)。

Application of ICEstimator in the mosquito toxicology to calculate median lethal concentration

ICEstimator在蚊虫毒理学半数致死浓度计算上的应用

lethal concentration(LC50)

半致死浓度（LC50）

Half-lethal concentration was Caucasian Clover 0.8%, Red Clover 0.7%, White Clover 0.4%.

耐盐半致死浓度分别是:0.8%, 0.7%, 0.4%;

Prospective Study of Lethal Blood Concentraton of DDVP in Humans

人体敌敌畏中毒的血液致死浓度探讨

Prospective Study of Lethal Blood Concentration of Organophosphorous in Humans;

有机磷农药中毒的人体血液致死浓度探讨

Toxic Responses of Zebrafish Embryos to Sub-lethal Concentrations of TCDD Exposure

亚致死性浓度的二噁英在斑马鱼胚胎中所致的毒性反应

Establishing fat embolism rat model and determination of half lethal dose

大鼠脂肪栓塞模型的建立及半数致死量的测定

The Semilethal Temperature of Taxus media cv. Hicksii and Its Adaptation to the Low Temperature Condition;

北美红豆杉低温半致死温度与对低温的适应性

Low Temperature LT50 of Three Eucalyptus Seedlings with Electrical Conductivity Method and Logistic Equation

应用Logistic方程确定三种桉树的低温半致死温度

Detection of Semi-lethal High Temperature and Heat Tolerance for Two Cultivars of Alfalfa

2种紫花苜蓿高温半致死温度与耐热性研究

Semilethal Temperature of Fingered Citron (Citrus medica var. sarcodactylis Swingle) under Low Temperature Stress and Evaluation on Their Cold Resistance

低温胁迫下佛手半致死温度测定和抗寒性分析

Correlation of the concentration of serum homocysteine and high-sensitivity C-reactive protein with the area of cerebral infarction

血清同型半胱氨酸和高敏C反应蛋白浓度与脑梗死面积关系

The Relationship Between the Plasma Homocysteine Level and The Clinical Subtypes of Cerebral Infarction

脑梗死不同病因亚型同血浆同型半胱氨酸浓度的关系研究

Effects of Sublethal Concentration of Avermectin on Frankliniella Occidentalis and Its Predatory Enemy Amblyseius Cucumeris;

阿维菌素亚致死浓度对西花蓟马及其天敌黄瓜钝绥螨的影响

Sublethal Effects of Methoxyfenozide on Common Cutworm Spodoptera Litura;

亚致死浓度美满对斜纹夜蛾生长发育和繁殖的影响

Effects of indoxacarb at sublethal concentrations on the development and activities of detoxification enzymes of Spodoptera litura

亚致死浓度茚虫威对斜纹夜蛾生长发育及解毒酶活性的影响

Effect of Sublethal Concentration of Spinosad on the Activity of Detoxifying Enzymes in the Western Flower Thrips,Frankliniella occidentalis(Thysanoptera:Thripidae)

亚致死浓度多杀菌素对西花蓟马解毒酶系活力的影响

COMPARISON ON DEVELOPMENT OF RESISTANCE AND SUSCEPTIBLE STRAIN OF TRIBOLIUM CASTANEUM(HERBST) IN THE PHOSPHINE FUMIGATION WITH SUB-LETHAL CONCENTRATION

不同磷化氢抗性的赤拟谷盗亚致死浓度下生长发育比较