半衰期

Objective To establish a HPLC method for the determination of aceclofenac in human plasma.Methods Acidified samples of plasma (500μL) were extracted with 4 mL of ethyl acetate. The organic phase was evaporated to dryness by nitrogen at 40℃ water bath. The residue was redissolved in mobile phase and then was determined.

醋氯芬酸是一种具有镇痛作用的非甾体类抗炎药物[1]，化学名为[邻-(2，6-二氯苯基)氨基]苯乙酰乙酸，l992年首先于西班牙上市，具有明显广泛的抗炎作用和强力的解热镇痛作用，其生物半衰期较双氯芬酸长，胃肠耐受性较双氯芬酸好，抗炎活性优于萘普生和保泰松[2]。

We recently documented that intrathecal IL-10 protein resoles neuropathic pain, albeit briefly ( approximately 2-3h), gien its short half-life.

我们最近报道鞘内的白细胞介素-10蛋白质可以治疗神经性疼痛，虽然时间短暂（大约2-3小时），因为其半衰期短。

Their half life are 15 hour and 1 min.

半衰期是15小时和1分钟。

The software shows the change of the half life of nuclide through long to short time by continuous spectrum. e. g., red, orange, yellow, green, cyanine, blue, purple colors, and also presents the basic information about Z, N, mass surplus, half life, disintegration mode and so on.

该软件利用红橙黄绿青蓝紫等连续的光谱标示核素寿命从短到长的变化，并给出了每个核素的Z、N、质量盈余、半衰期及衰变模式等基本信息。

At pH7, 30℃, the Carbaryl hydrolyzed very easyily in water, so the residue of Carbaryl in the environmental water is very small.

在pH值为7，温度30℃下，甲萘威很容易水解，其半衰期大约只有120h。

In results, metabolizability of dapsone in the experimental group was slower than that in the control group, but chlorzo-xazone was faster.

结果显示，试验组的氨苯砜代谢减慢，消除半衰期t1/2延长；而氯唑沙宗代谢加快，t1/2缩短。

Objective: To explore curve that serial ten-fold dilutions of the pMD-T vector contained the beta-actin amplified fragment.

目的：探讨和分析SK-N-SH细胞中β-actin mRNA的半衰期。

The degradation and residue of phorate in sugarcane and soil were determined by gas chromatography with flame photometry detector.

结果表明甲拌磷在土壤中的半衰期为11~12.3d，在正常使用条件下，不会造成甘蔗残毒污染和土壤的残留积累。

The element we're interested in is Radon-222 (there is another form, Radon-218, but the half-life of this isotope is only a few hundredths of a second, so it is less of a problem).

元素我们感兴趣的是氡- 222 （还有另一种形式，氡- 218 ，但半衰期同位素这是只有少数几个百分之一秒，所以它不是一个问题）。

Serum IgE has a much shorter half-life than other isotypes.

和其他抗体相较，IgE半衰期很短

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。