定量测定

Therough the test of three-factor quadratic regression orthogonality,we study uqantitatively the relationship between the antiscale rate and the adding amount of LA,the calcium content of the solution and the PH value.We come to the regression equation,which fairly fits the result of the experiment and can be used as the study of the antiscale property and the usable condition of LA.

根据三因子二次回归正交设计实验，定量研究了阻垢率与溶液中阻垢剂LA用量、Ca2+含量和pH值之间的关系，得到的回归方程能较好拟合实验测定结果，可用于合成产物LA阻垢性能和确定其适用条件的研究。

The method is easy, fast and precise and can fit for determining barrenwort in the health food .

该法简便、快速、定量准确、精密度好，适合于保健食品中淫羊藿苷的测定。

Mg/ml, the average recovery 101.6%, and the RSD lower than 10%. Conclusion:The method is easy, fast and precise and can fit for determining barrenwort in the health food .

该法简便、快速、定量准确、精密度好，适合于保健食品中淫羊藿苷的测定。

Baseline separation of eight kinds of LCFAs (dodecanoic acid, tetradecanoic acid, palmitic acid, oleic acid, stearic acid, eicosanic acid, erudcic acid, behenic acid) was achieved within 2 min with high resolution performance.

建立了利用短的微径色谱柱直接测定食用油中未衍生化长链脂肪酸的快速气相色谱方法。C12~C22脂肪酸在2 min之内实现基线分离，定量标准曲线的相关系数大于0.988，最低检测限（S/N=3）为2.80~9.60 mg/L，回收率为

Seven colorimetric methods Biuret, Lowry, a modified Lowry technique using bicinchoninic acid, Coomassie brilliant blue G (CBBG dye-binding in phosphoric acid, perchloric acid or hydrochloric acid, and bromophenol blue dye-binding were evaluated for determination of protein concentration in human whole saliva.

本实验以七种定量蛋白质之方法（Biuret法，Lowry法，BCA法，CBBG染料结合法、BPB染料结合法），利用三种参考蛋白质评估测定人类唾液蛋白质浓度之差异性。

Here we investigate the effects of 17 β-estradiol (10〓～10〓mol/L) on the proliferation and differentiation of newborn rat calvaria osteoblastic cell.

对体外培养的成骨细胞施以不同剂量的17β-雌二醇，3天后通过细胞计数、〓—胸苷掺合、细胞定量后测定骨钙素及碱性磷酸酶的量观察对增殖和分化的影响。

This probe was made by convalent bound between carboxyl group of FCA and 5-amino of oligonucleotide in the presence of a water-soluble carbodiimide.

然后与固定在电极上的SSDNA进行杂交反应，用ECL法测定杂交信号，根据发光信号的大小对目标DNA进行识别及定量。

The effects of cholic acid concentration and pH of the buffer on separation were studied, and the influences of organic additives such as methanol, acetonitrile, isopropyl alcohol were also examined.

该实验表明电化学检测同样可用于手性物质的分离，从而扩宽了电化学检测的应用范围，并为对映体的定量合成和纯度测定找到了灵敏的检测方法。

The HPLC system column, mobile phase of CH3CN-3%CH3COOH (11∶89) mixture, with detection wave at 270 nm, was used to determine the content of vitexin in Leaf of Crataegus pinnatifida Bge.

应用反相高效液相色谱法测定了山楂叶总黄酮中牡荆素的含量。C18柱作为色谱柱，乙腈-3%醋酸水溶液(11∶89)为流动相，检测波长270 nm，按外标法定量。

Elative quantitative RT-PCR was used to determine the expression of MDR1、GST-π、p53 mRNA in COC1 and COC1/DDP cells after DDP administered 24 hours.

T-PCR半定量法测定不同浓度DDP作用于COC1及COC1/DDP细胞24h后P53、GST-π、MDR1mRNA含量的变化。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了