Waters 氘灯201000281/201000186 

SymmetryShield RP18,是以沃特世*的一步合成技术制造的屏蔽型固定相。它可以显著改善碱性化合物峰形，并且提供与C18柱不同的分离选择性.SymmetryShield RP18色谱柱采用的极性基团嵌入技术又称屏蔽型固定相技术，是在通常的C18链中引入特定的极性基团所得到的新型固定相。大量研究表明，极性官能团可有效阻挡有机碱与硅胶表面残余硅羟基的不良作用，因而其峰形比相应的C18柱更优。同时，这类固定相允许使用全水流动相而不会发生“相塌陷”现象，因而可用于分离许多亲水性化合物SymmetryShield RP18常用规格订货信息如下：

Waters 氘灯201000281/201000186 

186005609       ACQUITY UPLC BEH C18 Column, 130?, 1.7 μm, 3 mm X 75 mm, 1/pkg        waters

700002332       PerformancePLUSCheckValveHousing    WATERS

WAT200609      EXTRACTMFLD20POS16X100RAC   waters

G3286-80118   Draintubing/connectorkit,ASX-500,1/p   waters

186003116       XBridge BEH C18, 130?, 5 μm, 4.6X 150         waters

WAT027324      μBondapak C18 Column, 125?, 10 μm, 3.9 mm X 300 mm     waters

186005297       ACQUITY CSH C18 Column, 1.7 μm, 2.1 x 100 mm          waters

186005305       ACQUITY UPLC CSH C18 VanGuard Pre-column, 130?, 1.7 μm, 2.1 mm X 5 mm, 3/pkg        waters

PSS831115        S5NH2 COL 25CMX4.6MM      waters

186003719       Atlantis T3 3μm 2.1x150mm Column      waters

186004563       SEP-PAK VAC PSA 6cc 500mg,30/bx          waters

PSS830615        S5ODS1COL25CMX4.6MM      waters

186001265       Waters PAH C18 5μm 4.6x250mm Column     waters

PSS845277        Spherisorb S5 ODS2 4.0x250mm Column         waters

186003009       XBridge Shield RP18 5μm 4.6x150mm Col       waters

186001299       Atlantis dC18 3μm 2.1 x 150mm Column        waters

WAT010295      ION EXCLUSION COLUMN 7.8X150          waters

WAT035577      CARBAMATE ANALYSIS COLUMN    waters

186003687       ACQUITYUPLCBEH300C181.7μm2.1x150mm         waters

186002554       SunFire C18 Column, 100?, 3.5 μm, 4.6 mm X 150 mm, 1/pkg       waters

700002332       PerformancePLUS Check Valve Housing waters

186003524       FilterGHP47mm0.2μm100/PK          waters

700001218       PerformancePLUS Vacuum Chamber       waters

WAT097962      Acrodisc, Minispike Syringe Filter, GHP, 13 mm, 0.2 μm, Aqueous, 100/pkg waters

186006505       ACQUITY UPLC PrST SEC Column, 125?, 1.7 μm, 4.6 mm X 150 mm, 1K - 80K, 1/pkg   waters

WAT034209      POLYSTYRENESTDKITSM-105  waters

700005038       Hydrocracked Mineral Oil with Additives（液体）         waters

700005924       10ul不锈钢进样针          waters

201000116       RHEODYNE 3725 PERFORMANCE MAINT KIT         waters

186000367       Oasis?MAXCartridge3cc/60mg100/Box waters

WAT044355      CARBOHYDRATECOLUMN4.6X250MM  waters

wat022995       Tubing, 1/16 in. (1.6mm) O.D. X 0.005 in. (0.127 mm) I.D. X 5 ft (1.5 m) Length , PEEK         waters

186002495       Oasis WCX 3cc cartr. 60mg 30μm 100/box     waters

186002490       OasisWAX3cccartr.60mg30μm100/box  waters

186000256       OasisMCXCartridges6cc/150mg30/box waters

186000252       Oasis MCX Cartridges 1cc/30mg 100/box       waters

PSS837515        SpherisorbSCXColumn,80?,5μm,4.6mmX250mm  waters

wat270968       High Flow Inlet Tubing Assembly     waters

176000908       ACQUITY BEH Phenyl 1.7μm 2.1x100mm 3-pk        waters

186001315       AtlantisdC185μm3.9x20mmGdColumn  waters

186003116       XBridge BEH C18 Column  5 μm, 4.6 mm X 150 mm, 1/pkg waters