反相

All voltage values, unless otherwise noted, are with respect to the midpoint between VCC + and VCC C. Differential voltages are at the noninverting input terminal with respect to the inverting input terminal.

所有的电压值，除非另有说明，关于之间的VCC +和VCC电压差分正处于中点是关于反相输入端同相输入端。

Compared with Inverting Input Composite Preamplifier in the commercial QMS,the NIICP can reduce noise by 5%～30% in the 106～107 V/A magnification,and can expand signal bandwidth by 1.8 times and increase MS peak amplitude by 10%～15% in the 108 V/A magnification.

实验结果表明：与反相输入复合放大器相比，同相输入复合放大器在106～107V/A放大时能降低5%～30%噪声，在108V/A放大时可扩展带宽1.8倍并提高10%～15%质谱峰强度。

In addition to the black-white double-lobe caused by the displacement field around pores, we demonstrate that LSC should correspond to a novel, peculiar class of anti-phase domain, of which the interior is a local isomorphism with a non-zero phason-type displacement ε〓w〓 i.e.

利用这个结果，我们发现黑白双瓣衬度是二十面体准晶中的多面体微孔引起，而环形衬度则对应于一种二十面体准晶中新奇的反相畴界，其两侧是由相位子型位移ε〓w〓＝B〓联系着的局域同晶类。

The chemical constituents of Huperzia serrata Trev. are mainly flavonoids, triterpenoids and alkaloids. In order to get further comprehension of lycopodium alkaloids, we studied the low-polar section of the alkaloids extraction of Huperzia serrata and 19 alkaloids were isolated by ways of silica gel, RP-18 and Sephadex LH-20 etc. All of their structures, including five new compounds and two known ones that were firstly found from this genus, were elucidated with the help of Mass, IR, NMR spectra and so on. The five new alkaloids (HS-07, HS-08, HS-09, HS-10 and HS-11) are belonged to lycopodine class. The other two ones that were new to this genus (HS-18 and HS-19) are belonged to miscellaneous group.

蛇足石杉的主要化学成分为黄酮，三萜和生物碱，为进一步了解该植物的生物碱成分，我们研究了蛇足石杉氯仿总碱低极性部位的生物碱成分，运用正相硅胶、反相RP-18、凝胶LH-20等方法分得了19个生物碱，并通过质谱、红外、核磁共振等波谱鉴定了它们的结构，其中5个为新化合物，2个为首次从该属植物中分离得到的化合物，所分得的新化合物：HS-07、HS-08、HS-09、HS-10和HS-11均为lycopodine类石松生物碱，首次从该属植物中分得的化合物为miscellaneous类：HS-18和HS-19。

The results show that the retention time of solute in HPLC is controlled by the molecular radius or molar volume, the dipole moment, the sum of negative Mülliken charges LUMO and the interaction between solution and solute.

结果表明溶质在反相C18柱上的保留值由分子半径或体积、分子的偶极矩、分子的静电力及溶质与流动相分子相互作用力决定。

An inverting AMPLIFIER configuration with a false ground reference at the non-inverting input prevents these errors by holding the input common-mode voltage constant.

反相放大器在同相输入端进行虚地的配置，可防止这些由共模电压引入的误差恒定。

Chiral separation of D -, L -phenylglycine by RP-HPLC was accomplished by adding a complex of optically active L -Phe-Cu2+ to the mobile phase. Chiral separation mechanism was further elucidated in light of unambiguously assigning the structure of the elutents from RP-HPLC by taking advantage of tandem mass spectrometry due to its unique capability of structural identification of the unknows.

以含 L -苯丙氨酸铜配位络合物的溶液作为手性流动相，采用反相高效液相色谱法拆分了非衍生苯甘氨酸对映体，使用质谱对拆分组分进行了结构鉴定，得到了拆分组分的化学结构，用量子化学计算预测了该结构的最稳定构象。

The indirect determining method of phosgene in ambient air by reversed-phase high performance liquid chromatography was set up.

μm 为分析柱，甲醇-水(体积比为 70∶30 )为流动相，在 2 5 7nm波长处用紫外检测器检测 1，3 二苯基脲，建立了间接测定空气中光气的反相高效液相色谱法。

HPLC method of determination of CCU has been developed for the kinetic study. The kinetics of photodecomposition of CCU in various carrier gases have been studied. The photoreaction of CCU in nitrogen and air is of the first order, while in oxygen is closer to that of the second order. The rate constants in nitrogen, air and oxygen are 0.00703/h, 0.0109/hand 0.00445 , and the half-livies are 98. 6, 63. 6 and 62. 7hour respectively.

采用以甲醇一水为流动相的反相HPLC作为分析手段，对灭幼脲在不同载气中的光解动力学作了研究，结果表明，灭幼脲在氮气和空气中的光解反应符合一级动力学形式，而在氧气中的光解则更接近于二级反应形式；在三种气氛中的反应速度常数分别为0.00703h〓，0.00109h〓和0.00445h〓〓，半衰期相应为98.6、63.6及62.7h。

The best method for isolation and purification of β-dihydroagarofuran sesquiterpene in Celastrus angulatus is alternate normal-phase and reserve-phase high performance liquid chromatography.

结果表明，对苦皮藤中富含二氢沉香呋喃倍半萜类化合物部分进行分离的过程中，采用正相、反相高压制备柱层析交替进行的方法最为有效。

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