测定

Methods Ponceau 4R was administrated orally to different groups of Drosophila melanogaster, Median lethal dose （LC50） was estimated by acute toxicity test; lifespan was tested by drosophila survival experiment; superoxide dismutase and maleic diadehyde were evaluated at different periods.

方法经口喂饲果蝇不同浓度胭脂红，通过急性毒性试验测定胭脂红半数致死浓度（median lethal dose，LC50），采用生存试验检测果蝇寿命，测定不同时间果蝇体内总超氧化物歧化酶（superoxide dismutase，SOD）活性及丙二醛（maleic dialdehyde，MDA）含量。

A new catalytic kinetic method with second derivative oscillopolarography detection for determining trace amounts of NO〓〓 has been developed. The method is based on the catalytic oxidation of Amarath by potassium bromide in the diluted H〓SO〓. The detection limit of the method is 2.8×10〓g/ml, the linear range of the determination 〓is 0.6～14ng/ml for NO〓.

首次研究了鸡冠红的示波极谱行为，并发现NO〓〓在稀硫酸介质中对KBrO〓氧化鸡冠红褪色反应具有强的催化作用，本文采用两阶导数示波极谱法作监测技术，测定了该催化体系的表观反应级数及动力学方程，建立了催化动力学伏安法测定痕量NO〓〓的新方法。

In the experiment, the study on result of measurement of COD by potassium dichromate method has been conducted in the aspect of impact and application scope, proposing the method of measuring low COD in waste water of high chlorine and putting forward new comment on its influence factor.

本试验采用重铬酸钾标准法对COD测定结果的影响程度与适用范围进行了探索，提出了用低浓度重铬酸钾氧化法测定含高氯根废水中低COD的方法，对其影响因素提出新的看法。

DESIGN: A 2-y longitudinal study to examine whether components of energy metabolism are predictors of body fat gain was conducted in 114 preadolescent African American and white children aged 9-11 y by measuring total daily energy expenditure on the basis of doubly labeled water, resting metabolic rate, the thermic effect of food, energy expended in physical actiity, and substrate oxidation after a meal.

设计：研究对象为114个青春期前的非裔美国小孩和白人小孩，年龄为9-11岁。通过用双标水法测定每日热能消耗总量、测定静息代谢率、食物的产热效应、体力活动能量消耗及餐后的底物氧化，进行一个2年的纵向调查，检测能量代谢的组成是否能够预测体内脂肪增加。

DESIGN: A 2-y longitudinal study to examine whether components of energy metabolism are predictors of body fat gain was conducted in 114 preadolescent African American and white children aged 9-11 y by measuring total daily energy expenditure on the basis of doubly labeled water, resting metabolic rate, the thermic effect of food, energy expended in physical activity, and substrate oxidation after a meal.

设计：研究对象为114个青春期前的非裔美国小孩和白人小孩，年龄为9-11岁。通过用双标水法测定每日热能消耗总量、测定静息代谢率、食物的产热效应、体力活动能量消耗及餐后的底物氧化，进行一个2年的纵向调查，检测能量代谢的组成是否能够预测体内脂肪增加。

Methods Blood samples were collected from the precaval vein of 6 female Tibet mini-pigs to test the concentration of sex hormones including T,P4,E2,FSH,LH,PRL and blood biochemical indexes including Ca, Mg, P, ALP, Cre, CHO, TP, and Alb during the estrous cycle.

对6头雌性西藏小型猪在发情周期内的发情当天、第5天、第10天、第15天、再次发情时分别采血5 mL并分离血清，应用放射免疫法测定血清睾酮、孕酮(P4)、雌二醇(E2)、促卵泡生成激素、促黄体生成激素、泌乳素；用自动生化仪测定血清钙、镁、磷、碱性磷酸酶、肌苷、总胆固醇、总蛋白、白蛋白。

The concentration of dextran solution was measured by testing its turbidity value using ethanol as the precipitant.

以乙醇为沉淀剂，测定水溶液中葡聚糖溶液浊度的方法测定葡聚糖的浓度。

According to the predacity of the nematode-trapping fungi and the growth habit of pine wood nematode Bursaphelenchus xylophilus, this paper tested the B. xylophilus that cultured by the fixed time and quantities. Trying to find out the quantificational test method of trapping rate, by the change of the quantities of B.

本文依据捕食线虫真菌的捕食特性以及松材线虫的生长习性，对松材线虫进行了定时、定量的测定试验，试图通过培养后线虫的种群数量变化，来摸索定量测定捕食率的方法。

A simple, rapid and accurate method for the determination of preservative s in cosmetics has been established.

建立了一种简单、快速、准确测定化妆品中各种防腐剂的测定方法。

In addition, blood pressure of rats in OVA-treated group and control group was measured.

在不同时间取血清，进行被动皮肤致敏试验；分离血浆进行组胺测定；此外，对OVA组和对照组的大鼠进行血压测定。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。