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上海暄泓科學(xué)儀器有限公司
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上海暄泓科學(xué)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)：101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(jià)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(qiáng)調(diào)反相作用。
XSelect CSH色譜柱的可擴(kuò)展性和通用性使其可用作分離和純化科學(xué)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(shù)的結(jié)合產(chǎn)生了在寬運(yùn)行條件下具有優(yōu)異壽命的色譜柱。色譜柱設(shè)計(jì)固有的可擴(kuò)展性使得純化科學(xué)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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