The 48h LC 50 values (lethal concentration fifty) were 7.
４８ｈ所測(cè)得的半數(shù)致死濃度ＬＣ５０值，ＬＡＳ為７。
QSAR modeling for LC50 of organic chemicals to rainbow trout using molecular connection index;
預(yù)測(cè)有機(jī)物對(duì)虹鱒半致死濃度的分子連接性指數(shù)法
This paper deals with the acute and chronic toxic effect of Cu2+,Zn2+ r on survival rates,growth of the Neomysis awatschensis including the values of 24,48,72 and 96 h LC50,and safe concentration(SC) in seawate.
包括了Cu2+、Zn2+對(duì)黑褐新糠蝦在24、48、72和96 h的半致死濃度(LC50),安全濃度(SC)和在生長(zhǎng)、成活、繁殖等方面的影響。
The results showed the 48 h,72 h and 96 h LC50(median lethal concentration) values for trichlorfon against fingerling of Carassai.
根據(jù)試驗(yàn)期間死亡魚(yú)數(shù)及死亡時(shí)間,用直線內(nèi)插法計(jì)算各時(shí)間點(diǎn)的半致死濃度LC50并根據(jù)死亡魚(yú)數(shù)研究pH值和溫度對(duì)敵百蟲(chóng)毒性的影響。
It was found that the 24,48,72 h and 96 h median lethal concentration(LC50) values(95% confidence interval) of the phenol to the juveniles were 97(87-109),83(73-95),75(69-83)mg/L and 71(64-80)mg/L,respective.
結(jié)果表明:苯酚對(duì)中華鱘稚魚(yú)24、48、72 h和96h的半致死濃度(LC50)及95%可信區(qū)間分別為97(87~109)、83(73~95)、75(69~83)mg/L和71(64~80)mg/L;Cu2+對(duì)中華鱘稚魚(yú)的24、48、72 h和96 h的LC50及95%可信區(qū)間分別為0。
The study showed that tadpoles of Bufo Melanosticus,a specie widely distributed in South China,are highly sensitive to waste battery leaching and that the median lethal concentration decreases with the increase of time.
選用我國(guó)南方自然界中廣泛分布的黑眶蟾蜍(Bufomelanosticus)的蝌蚪,通過(guò)研究廢舊電池浸出物對(duì)蟾蜍蝌蚪致死率的影響,表明蝌蚪對(duì)廢舊電池滲出液十分敏感;半致死濃度隨著時(shí)間的增加而降低。
The grades were designed by equal space between logarithm, and the median lethal concentration was computed by Linear Regression.
濃度梯度按等對(duì)數(shù)間距設(shè)置,半致死濃度采用直線內(nèi)插法進(jìn)行計(jì)算。
The results showed that the median-lethal concentrations were 0.
結(jié)果顯示,這五種藥物48 h的半致死濃度分別為0。
The LC_(50) of metriphonate to L.
采用急性毒性方法測(cè)定了被不同濃度敵百蟲(chóng)毒害的水絲蚓(Limnodilus hoffineisteri)半致死濃度(LC50),利用測(cè)定酶活性方法檢測(cè)了水絲蚓超氧化物歧化酶(SOD)的變化及中毒后水絲蚓喂飼的強(qiáng)壯水螅(Hydra robusta)SOD的改變。
The LC_(50),the safety concentration and the sensitivity of the drugs were compared and suggestions proposed.
8℃下,6種漁用藥物對(duì)梭子蟹Ⅰ～Ⅱ期稚蟹的96小時(shí)半致死濃度(96hLC_(50))分別為硫酸銅1。