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上海暄泓科學儀器有限公司
上海暄泓科學儀器有限公司
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更新時間：2024-02-10 17:36:14瀏覽次數(shù)：113次
聯(lián)系我時，請告知來自 環(huán)保在線苯基固定相通過π-π作用力提高了與平面芳香族化合物的相互作用
XSelect CSH苯已基柱比起傳統(tǒng)的反相柱提供另一種選擇性，是方法開發(fā)中一種很有價值的工具，如低pH條件下。
XSelect CSH苯基固定相通過π-π作用力提高了與平面芳香族化合物的相互作用。與氟苯基色譜柱相比，相比與那些次級的Lewis堿相互作用力而言XSelect CSH苯基色譜柱更多強調(diào)反相作用。
XSelect CSH色譜柱的可擴展性和通用性使其可用作分離和純化科學家的有力的方法開發(fā)工具。用于合成CSH固定相的雜化顆粒材質(zhì)作為現(xiàn)有最耐壓力的色譜柱而為業(yè)界所熟知。耐用性與OBD填裝技術的結(jié)合產(chǎn)生了在寬運行條件下具有優(yōu)異壽命的色譜柱。色譜柱設計固有的可擴展性使得純化科學家能夠選擇從更大到更小和更窄的制備型色譜柱，降低溶劑消耗和餾分體積。
A rapid and simple method for the simultaneous determination of twelve sweeteners and nine preservatives in various foods by liquid chromatography-tandem mass spectrometry (LC-MS/MS) was developed. The sweeteners and preservatives were extracted from solid samples with 80% and 50% methanol and from liquid samples with 80% methanol, followed by Oasis WAX cartridge cleanup. The LC separation was performed on a XSelect CSH Phenyl-Hexyl column (5 μm, 2.1 mm ×150 mm) with a phase of 10 mmol/L acetate buffer (pH 4.0)-acetonitrile and MS detection with negative ion electrospray ionization. The quantification limits of acesulfame K (AK), alitame (AL), aspartame (ASP), cyclamic acid (CYC), neotame (NEO), saccharin Na (SAC), p-hydroxybenzoic acid methyl (PHBA-Me), p-hydroxybenzoic acid ethyl (PHBA-Et), p-hydroxybenzoic acid isopropyl (PHBA-iPr), p-hydroxybenzoic acid propyl (PHBA-Pr), p-hydroxybenzoic acid isobutyl (PHBA-iBu) and p-hydroxybenzoic acid butyl (PHBA-Bu) were 0.001 g/kg, those of dulcin (DU), glycyrrhizic acid (GLY), neohesperidin dihydrochalcone (NHDC), rebaudioside A (REB), stevioside (STV), sucralose (SUC) and benzoic acid (BA) were 0.005 g/kg, and those of sorbic acid (SOA) and dehydroacetic acid (DHA) were 0.02 g/kg. The mean recoveries from ten kinds of foods fortified at the levels of 0.02 and 0.2 g/kg were 70.9-119.0%, and their relative standard deviations were 0.1-11.7%.
| 品名 | 編號 |
| XSelect CSH Phenyl-Hexyl OBD Prep Column, 130?, 5 µm, 10 mm X 250 mm, 1/pkg | 186008247 |
| XSelect CSH Phenyl-Hexyl Column, 130?, 3.5 µm, 3 mm X 75 mm, 1/pkg | 186005648 |
| XSelect CSH Phenyl-Hexyl Column, 130?, 3.5 µm, 3 mm X 50 mm, 1/pkg | 186005371 |
| XSelect CSH Phenyl-Hexyl Column, 130?, 5 µm, 3 mm X 150 mm, 1/pkg | 186005392 |
| XSelect CSH Phenyl-Hexyl Column, 130?, 3.5 µm, 4.6 mm X 150 mm, 1/pkg | 186005380 |
| XSelect CSH Phenyl-Hexyl Column, 130?, 5 µm, 3 mm X 30 mm, 1/pkg | 186005389 |
| XSelect CSH Phenyl-Hexyl Column, 130?, 5 µm, 4.6 mm X 20 mm, 1/pkg | 186005394 |
| XSelect CSH Phenyl-Hexyl Column, 130?, 3.5 µm, 3 mm X 150 mm, 1/pkg | 186005373 |
| XSelect CSH Phenyl-Hexyl Column, 130?, 5 µm, 3 mm X 50 mm, 1/pkg | 186005390 |
| XSelect CSH Phenyl-Hexyl Column, 130?, 3.5 µm, 3 mm X 100 mm, 1/pkg | 186005372 |
| XSelect CSH Phenyl-Hexyl Column, 130?, 3.5 µm, 4.6 mm X 50 mm, 1/pkg | 186005377 |
| XSelect CSH Phenyl-Hexyl Column, 130?, 3.5 µm, 4.6 mm X 75 mm, 1/pkg | 186005378 |
| XSelect CSH Phenyl-Hexyl Column, 130?, 5 µm, 4.6 mm X 50 mm, 1/pkg | 186005397 |
| XSelect CSH Phenyl-Hexyl Column, 130?, 5 µm, 3 mm X 100 mm, 1/pkg | 186005391 |
| XSelect CSH Phenyl-Hexyl Column, 130?, 5 µm, 4.6 mm X 30 mm, 1/pkg | 186005396 |
| XSelect CSH Phenyl-Hexyl Column, 130?, 3.5 µm, 4.6 mm X 30 mm, 1/pkg | 186005376 |
| XSelect CSH Phenyl-Hexyl Column, 130?, 3.5 µm, 4.6 mm X 100 mm, 1/pkg | 186005379 |
| XSelect CSH Phenyl-Hexyl Column, 130?, 5 µm, 4.6 mm X 75 mm, 1/pkg | 186005398 |
| XSelect CSH Phenyl-Hexyl Column, 130?, 5 µm, 4.6 mm X 100 mm, 1/pkg | 186005399 |
| XSelect CSH Phenyl-Hexyl Column, 130?, 5 µm, 4.6 mm X 150 mm, 1/pkg | 186005400 |
| XSelect CSH Phenyl-Hexyl Column, 130?, 5 µm, 4.6 mm X 250 mm, 1/pkg | 186005401 |
| XSelect CSH Phenyl-Hexyl XP Column, 130?, 2.5 µm, 3 mm X 100 mm, 3/pkg | 176002617 |
| XSelect CSH Phenyl-Hexyl XP Column, 130?, 2.5 µm, 3 mm X 50 mm, 1/pkg | 186006129 |
| XSelect CSH Phenyl-Hexyl XP Column, 130?, 2.5 µm, 4.6 mm X 100 mm, 1/pkg | 186006135 |
| XSelect CSH Phenyl-Hexyl XP Column, 130?, 2.5 µm, 3 mm X 150 mm, 3/pkg | 176002896 |
| XSelect CSH Phenyl-Hexyl XP Column, 130?, 2.5 µm, 3 mm X 50 mm, 3/pkg | 176002615 |
| XSelect CSH Phenyl-Hexyl XP Column, 130?, 2.5 µm, 3 mm X 30 mm, 1/pkg | 186006128 |
| XSelect CSH Phenyl-Hexyl XP Column, 130?, 2.5 µm, 3 mm X 100 mm, 1/pkg | 186006131 |
| XSelect CSH Phenyl-Hexyl XP Column, 130?, 2.5 µm, 3 mm X 150 mm, 1/pkg | 186006734 |
| XSelect CSH Phenyl-Hexyl XP Column, 130?, 2.5 µm, 4.6 mm X 75 mm, 1/pkg | 186006134 |
| XSelect CSH Phenyl-Hexyl XP Column, 130?, 2.5 µm, 3 mm X 75 mm, 1/pkg | 186006130 |
| XSelect CSH Phenyl-Hexyl XP Column, 130?, 2.5 µm, 4.6 mm X 30 mm, 1/pkg | 186006132 |
| XSelect CSH Phenyl-Hexyl XP Column, 130?, 2.5 µm, 4.6 mm X 50 mm, 1/pkg | 186006133 |
| XSelect CSH Phenyl-Hexyl XP Column, 130?, 2.5 µm, 3 mm X 75 mm, 3/pkg | 176002616 |
| XSelect CSH Phenyl-Hexyl XP Column, 130?, 2.5 µm, 2.1 mm X 30 mm, 1/pkg | 186006124 |
| XSelect CSH Phenyl-Hexyl XP Column, 130?, 2.5 µm, 2.1 mm X 75 mm, 1/pkg | 186006126 |
| XSelect CSH Phenyl-Hexyl XP Column, 130?, 2.5 µm, 2.1 mm X 50 mm, 1/pkg | 186006125 |
| XSelect CSH Phenyl-Hexyl XP Column, 130?, 2.5 µm, 2.1 mm X 30 mm, 3/pkg | 176002610 |
| XSelect CSH Phenyl-Hexyl XP Column, 130?, 2.5 µm, 2.1 mm X 50 mm, 3/pkg | 176002611 |
| XSelect CSH Phenyl-Hexyl XP Column, 130?, 2.5 µm, 2.1 mm X 100 mm, 3/pkg | 176002613 |
| XSelect CSH Phenyl-Hexyl XP Column, 130?, 2.5 µm, 3 mm X 30 mm, 3/pkg | 176002614 |
| XSelect CSH Phenyl-Hexyl XP Column, 130?, 2.5 µm, 2.1 mm X 150 mm, 3/pkg | 176002895 |
| XSelect CSH Phenyl-Hexyl XP Column, 130?, 2.5 µm, 2.1 mm X 100 mm, 1/pkg | 186006127 |
| XSelect CSH Phenyl-Hexyl XP Column, 130?, 2.5 µm, 2.1 mm X 150 mm, 1/pkg | 186006733 |
| XSelect CSH Phenyl-Hexyl XP Column, 130?, 2.5 µm, 2.1 mm X 75 mm, 3/pkg | 176002612 |
| XSelect CSH Phenyl-Hexyl Column, 130?, 3.5 µm, 2.1 mm X 50 mm, 1/pkg | 186005365 |
| XSelect CSH Phenyl-Hexyl Column, 130?, 3.5 µm, 2.1 mm X 100 mm, 1/pkg | 186005366 |
| XSelect CSH Phenyl-Hexyl Column, 130?, 5 µm, 2.1 mm X 30 mm, 1/pkg | 186005383 |
| XSelect CSH Phenyl-Hexyl Column, 130?, 5 µm, 2.1 mm X 150 mm, 1/pkg | 186005386 |
| XSelect CSH Phenyl-Hexyl Column, 130?, 3.5 µm, 2.1 mm X 20 mm, 1/pkg | 186005363 |
| XSelect CSH Phenyl-Hexyl Column, 130?, 3.5 µm, 2.1 mm X 150 mm, 1/pkg | 186005367 |
| XSelect CSH Phenyl-Hexyl Column, 130?, 3.5 µm, 2.1 mm X 30 mm, 1/pkg | 186005364 |
| XSelect CSH Phenyl-Hexyl Column, 130?, 5 µm, 2.1 mm X 50 mm, 1/pkg | 186005384 |
| XSelect CSH Phenyl-Hexyl Column, 130?, 5 µm, 2.1 mm X 100 mm, 1/pkg | 186005385 |
| XSelect CSH Phenyl-Hexyl Column, 130?, 3.5 µm, 2.1 mm X 75 mm, 1/pkg | 186005645 |
| XSelect CSH Phenyl-Hexyl Column, 130?, 5 µm, 2.1 mm X 20 mm, 1/pkg | 186005382 |
| XSelect CSH Phenyl-Hexyl Column, 130?, 5 µm, 3 mm X 250 mm, 1/pkg | 186005393 |
| XSelect CSH Phenyl-Hexyl Method Validation Kit, 130?, 2.5 µm, 3 mm X 100 mm, 3/pkg | 186006248 |
| XSelect CSH Phenyl-Hexyl Method Validation Kit, 130?, 2.5 µm, 4.6 mm X 50 mm, 3/pkg | 186006250 |
| XSelect CSH Phenyl-Hexyl XP Column, 130?, 2.5 µm, 4.6 mm X 150 mm, 1/pkg | 186006735 |
| XSelect CSH Phenyl-Hexyl Method Validation Kit, 130?, 2.5 µm, 4.6 mm X 150 mm, 3/pkg | 186006793 |
| XSelect CSH Phenyl-Hexyl Method Validation Kit, 130?, 2.5 µm, 3 mm X 150 mm, 3/pkg | 186006792 |
| XSelect CSH Phenyl-Hexyl Method Validation Kit, XP Column, 130?, 2.5 µm, 3 mm X 50 mm, 3/pkg | 186006247 |
| XSelect CSH Phenyl-Hexyl OBD Prep Column, 130?, 5 µm, 19 mm X 50 mm, 1/pkg | 186005446 |
| XSelect CSH Phenyl-Hexyl OBD Prep Column, 130?, 5 µm, 50 mm X 50 mm, 1/pkg | 186005508 |
| XSelect CSH Phenyl-Hexyl OBD Prep Column, 130?, 5 µm, 50 mm X 250 mm, 1/pkg | 186005511 |
| XSelect CSH Phenyl-Hexyl OBD Prep Column, 130?, 5 µm, 19 mm X 250 mm, 1/pkg | 186005506 |
| XSelect CSH Phenyl-Hexyl OBD Prep Column, 130?, 5 µm, 19 mm X 150 mm, 1/pkg | 186005448 |
| XSelect CSH Phenyl-Hexyl OBD Prep Column, 130?, 5 µm, 50 mm X 150 mm, 1/pkg | 186005510 |
| XSelect CSH Phenyl-Hexyl OBD Prep Column, 130?, 5 µm, 30 mm X 150 mm, 1/pkg | 186005452 |
| XSelect CSH Phenyl-Hexyl OBD Prep Column, 130?, 5 µm, 30 mm X 250 mm, 1/pkg | 186005507 |
| XSelect CSH Phenyl-Hexyl OBD Prep Column, 130?, 5 µm, 50 mm X 100 mm, 1/pkg | 186005509 |
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