Symmetry色譜柱顯示出跨越多年的z越重現(xiàn)性，這來(lái)自于高純度硅膠顆粒、以及色譜柱行業(yè)內(nèi)最嚴(yán)格的生產(chǎn)工藝與指標(biāo)控制。

        沒(méi)有其它硅膠色譜柱，能夠達(dá)到Symmetry色譜柱的柱與柱間、批與批間的重現(xiàn)性。

■  Symmetry C18 和 C8 色譜柱，提供z大程度的重現(xiàn)性

■  Symmetry Shield RP18 和 RP8 色譜柱，提供z越峰形

■  Symmetry 300 C18 和 C4 色譜柱，為肽與蛋白分析提供更好的峰形與回收率

     1、杰出的峰形

     當(dāng)需要對(duì)堿性化合物分析獲得z越峰形時(shí)，SymmetryShield色譜柱是極好的選擇。該反相色譜柱基于沃特世z利內(nèi)嵌極性基團(tuán)

技術(shù)，這項(xiàng)技術(shù)確實(shí)能夠“屏蔽”(shield，英文有“護(hù)罩”、“屏蔽”的含義)硅膠表面的殘留硅醇基，使它不能與堿性較大的化合物發(fā)生

拖尾作用。因此，SymmetryShield色譜柱能夠：

     ■ pH2-8范圍內(nèi)使峰形與分離度顯著改善(通?？色@得USP拖尾因子不超過(guò)1.2)

     ■ 與常規(guī)C18和C8柱相比，對(duì)堿性化合物的保留較小

     2、獨(dú)特選擇性

     SymmetryShield色譜柱，與常規(guī)C18和C8柱相比，因?yàn)楣璐蓟钚暂^低，對(duì)于堿性化合物的保留也就較弱，從而呈現(xiàn)出不同的

選擇性?？勺鳛榉椒ㄩ_(kāi)發(fā)工具。

     3、完美兼容高水相條件

     SymmetryShield色譜柱還特別適用于那些要求使用低比例有機(jī)溶劑、高比例水溶液的反相條件。具有內(nèi)嵌極性基團(tuán)的反相顆粒

能夠完全被水浸潤(rùn)，從而確保顆粒與樣品之間的更好的相互作用。從而在高水相流動(dòng)相條件下獲得穩(wěn)定的保留，以及杰出的峰形。

目前Waters Symmetry  Shield RP18  生產(chǎn)在售的貨號(hào)有（L1）：

●●●●●●●●●●【分析柱】●●●●●●●●●●

◆5 μm◆

186000112        Symmetry Shield RP18 Column, 100?, 5 μm, 4.6 mm X 250 mm, 1/pk

186000109        Symmetry Shield RP18 Column, 100?, 5 μm, 4.6 mm X 150 mm, 1/pk

        Symmetry方法驗(yàn)證包

186000102        Symmetry Shield RP18 Cartridge Method Validation Kit, 100?, 5 μm, 4.6 mm X 250 mm, 3/pk

186000103        Symmetry Shield RP18 Cartridge Method Validation Kit, 100?, 5 μm, 4.6 mm X 150 mm, 3/pk

186002618        Symmetry Shield RP18 Column, 100?, 5 μm, 4.6 mm X 100 mm, 1/pk

186000218        Symmetry Shield RP18 Column, 100?, 5 μm, 4.6 mm X 50 mm, 1/pk

186000108        Symmetry Shield RP18 Column, 100?, 5 μm, 3.9 mm X 150 mm, 1/pk

186000693        Symmetry Shield RP18 Column, 100?, 5 μm, 3 mm X 250 mm, 1/pk

186000692        Symmetry Shield RP18 Column, 100?, 5 μm, 3 mm X 150 mm, 1/pk

186000111        Symmetry Shield RP18 Column, 100?, 5 μm, 2.1 mm X 150 mm, 1/pk

186000998        Symmetry Shield RP18 Column, 100?, 5 μm, 2.1 mm X 100 mm, 1/pk

186000217        Symmetry Shield RP18 Column, 100?, 5 μm, 2.1 mm X 50 mm, 1/pk

         保護(hù)柱

186000107          Symmetry Shield RP18 Sentry Guard Cartridge, 100?, 5 μm, 3.9 mm X 20 mm, 2/pk

WAT046910        Holder Kit for Cartridge and Guard Columns  柱套

    VanGuard保護(hù)柱

186007753        Symmetry Shield RP18 VanGuard Cartridge, 100?, 5 μm, 2.1 mm X 5 mm, 3/pk（適用于2.1 - 3.0 mmid分析柱）

186007755        Symmetry Shield RP18 VanGuard Cartridge, 100?, 5 μm, 3.9 mm X 5 mm, 3/pk（適用于4.6 mmid分析柱）

186007949        VanGuard Cartridge Holder, 1/pk 柱套

◆3.5μm◆

186000180        Symmetry Shield RP18 Column, 100?, 3.5 μm, 4.6 mm X 150 mm, 1/pk

        Symmetry方法驗(yàn)證包

186000181        Symmetry Silica Shield RP18 Method Validation Kit, 100?, 3.5 μm, 4.6 mm X 150 mm, 3/pk

186000179        Symmetry Shield RP18 Column, 100?, 3.5 μm, 4.6 mm X 100 mm, 1/pk

186000178        Symmetry Shield RP18 Column, 100?, 3.5 μm, 4.6 mm X 75 mm, 1/pk

186000177        Symmetry Shield RP18 Column, 100?, 3.5 μm, 4.6 mm X 50 mm, 1/pk

186002084        Symmetry Shield RP18 Intelligent Speed (IS) Column, 100?, 3.5 μm, 3.9 mm X 20 mm, 1/pk

186000699        Symmetry Shield RP18 Column, 100?, 3.5 μm, 3 mm X 150 mm, 1/pk

186000700        Symmetry Shield RP18 Column, 100?, 3.5 μm, 3 mm X 100 mm, 1/pk

186000174        Symmetry Shield RP18 Column, 100?, 3.5 μm, 2.1 mm X 150 mm, 1/pk

186000173        Symmetry Shield RP18 Column, 100?, 3.5 μm, 2.1 mm X 100 mm, 1/pk

186000172        Symmetry Shield RP18 Column, 100?, 3.5 μm, 2.1 mm X 50 mm, 1/pk

            保護(hù)柱

186000169          Symmetry Shield RP18 Sentry Guard Cartridge, 100?, 3.5 μm, 2.1 mm X 10 mm, 2/pk

WAT097958        2.1 mm x 10 mm Holder Kit for Cartridges and Guard Columns 柱套

186000701         Symmetry Shield RP18 Sentry Guard Cartridge, 100?, 3.5 μm, 3.9 mm X 20 mm, 2/pk

WAT046910        Holder Kit for Cartridge and Guard Columns  柱套

        VanGuard保護(hù)柱

186007749        Symmetry Shield RP18 VanGuard Cartridge, 100?, 3.5 μm, 2.1 mm X 5 mm, 3/pk

                            （適用于2.1 - 3.0 mmid分析柱）

186007751        Symmetry Shield RP18 VanGuard Cartridge, 100?, 3.5 μm, 3.9 mm X 5 mm, 3/pk

                            （適用于4.6 mmid分析柱）

186007949        VanGuard Cartridge Holder, 1/pk 柱套

●●●●●●●●●●【制備柱】●●●●●●●●●●

◆7 μm◆

186001839        Symmetry Shield RP18 Prep Column, 100?, 7 μm, 19 mm X 150 mm, 1/pk

186001840        Symmetry Shield RP18 Prep Column, 100?, 7 μm, 19 mm X 300 mm, 1/pk

◆5 μm◆

186001835        Symmetry Shield RP18 Prep Guard Cartridge, 100?, 5 μm, 19 mm X 10 mm, 1/pk

186001836        Symmetry Shield RP18 Prep Column, 100?, 5 μm, 19 mm X 50 mm, 1/pk

186001837        Symmetry Shield RP18 Prep Column, 100?, 5 μm, 19 mm X 100 mm, 1/pk

186001838        Symmetry Shield RP18 Prep Column, 100?, 5 μm, 19 mm X 150 mm, 1/pk

配合19x10mm  保護(hù)柱卡套，貨號(hào)：186000709； 

配合7.8x10mm 保護(hù)柱卡套，貨號(hào)：186000708。