磺酸

The dispersion effect of sodium dodecyl benzyl sulfate was better than that of sodium dodecyl sulfate and polyvinyl pyrrolidone.

离子型表面活性剂十二烷基苯磺酸钠优于十二烷基硫酸钠和非离子型表面活性剂聚乙烯吡咯烷酮。

ObjectiveTo establish a high performance liquid chromatographic method for the determination of taurine in beverages.Methods:After derivatization with FMOC,tarine in beverages was separated and quantitied by HPLC.

牛磺酸(2-氨基乙磺酸)是广泛存在于动物和人体内的一种含硫氨基酸，具有保护心血管系统、促进脂肪乳化、改善视功能和抗氧化等生理功能[1]，在预防医学领域具有重要的应用前景。

Objective:To observe the effects of patient controlled epidural analgesia with ropivacaine mesilate and fentanyl and patient controlled intravenous analgesia with fentanyl and droperidol on clinical result and blood gas urdergoing laparoscopic rectectomy in aged patients.

目的：观察老年患者腹腔镜直肠癌术后甲磺酸罗哌卡因、芬太尼硬膜外自控镇痛（patient controlled epidural analgesia，PCEA）与芬太尼、氟哌利多静脉自控镇痛（patient controlled intravenous analgesia，PCIA）的临床效果及对血气的影响。

Objective:To observe the effects of patient controlled epidural analgesia with ropivacaine mesilate and fentanyl and patient controlled intravenous analgesia with fentanyl and droperidol on clinical result and blood gas urdergoing laparoscopic rectectomy in aged patients.Methods:Fifty??two patients ASAⅠ?

目的：观察老年患者腹腔镜直肠癌术后甲磺酸罗哌卡因、芬太尼硬膜外自控镇痛（patient controlled epidural analgesia，PCEA）与芬太尼、氟哌利多静脉自控镇痛（patient controlled intravenous analgesia，PCIA）的临床效果及对血气的影响。

The conjugated structure of AOⅡ was reductively cleaved by micro-electrolysis, producing easily bio-degradable aromatic amines. The absorbance bands in the visible and ultraviolet regions were reduced or completely eliminated.

AOII分子在转鼓式内电解的作用下，其可见光和紫外光区的特征吸收峰逐渐降低直至消失，并新生成更容易生物降解的对氨基苯磺酸盐。

The lowest surface tension of N_xB solution was better at 25℃, and lowest surface tension would down with carbon . cmc( critical micelle concentration) and γ_ in N_(12)B are 4.1 × 10~(-4)mol/L, 24.5 mN.m~(-1),what was smaller than LAS . The cmc of N_(12)B- NaCl are down with NaCl up.The surface tension and cmc of N_(12)B and N_(16)B are higher than that of N_(12)OB and N_(16)OB because of hydrophilic group ,but that of N_(12)B is lower than that of N_(16)B because of hydrophobic group .5. The borate structure and semipolar bond were studied in different pH by infrared spectrum .It indicated that N_xB and N_xOB have not semipolar bond at pH

4、25℃，N_xB系列都有较低的表面张力，并随碳原子数的增加而最低表面张力下降。N_(12)B比同碳原子数的十二烷基苯磺酸钠的最低表面张力34.5mN／m低，且临界胶束浓度为4.1×10~(-5)mol／L，也比LAS低，且随着NaCl浓度的增加而略有下降，比较N_(12)B和N_(16)B，由于C_(16)疏水基的异构体使N_(12)B的临界胶束浓度和临界胶束浓度时的表面张力γ_(cmc都低，由于增加了亲水基团使得N_(12)OB和N_(16)OB的表面张力和临界胶束浓度都要高于N_(12)B和N_(16)B。

Keywords sodium dodecy/benzene sulfonate; hepatic lesion; reverse change of seroenzyme

十二烷基苯磺酸钠；肝损害；血清酶逆向变化

A three-level energy model is forwarded on the nonlinear absorption properties o f a two-photon absorption dye trans-4-[4′-(N- hydroxyethyl- N-eth ylamino)styryl]-N-methylpyridinium p-toluene sulfonate.

提出了有机染料反式 4 [4′(N 羟乙基 N 乙基胺基)苯乙烯基 ] N 甲基吡啶对甲苯磺酸盐非线性吸收的三态模型。

The bulk Ni with various grain sizes were prepared by direct current or pulse electrodeposition, respectively, in the nickel sulfamate electrolyte.

在氨基磺酸镍体系的镀液中通过直流、脉冲电沉积分别制备了不同晶粒尺寸的块体镍。

The bulk Ni with various grain sizes were prepared by direct current or pulse electrodeposition, respectively, in the nickel sulfamate electrolyte.

摘 要：在氨基磺酸镍体系的镀液中通过直流、脉冲电沉积分别制备了不同晶粒尺寸的块体镍。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。