美國聚合物標(biāo)準(zhǔn)品公司（American Polymer Standards Corporation, APSC）專業(yè)從事聚合物分子量分布分析，在分析各種材料例如尼龍，聚氨酯，聚乙烯，聚丙烯，共聚物等具有豐富的經(jīng)驗(yàn)。分子量分布分析的主要方法有凝膠滲透色譜/尺寸排阻色譜(GPC/SEC)；多角激光光散射(MALLS) 以及氣相滲透壓法(VPO)。 自1983年起，美國聚合物標(biāo)準(zhǔn)品公司即提供多種和水性聚合物標(biāo)準(zhǔn)品，這些標(biāo)準(zhǔn)品非常適合于儀器校準(zhǔn)，聚合物樣品的GPC/SEC，MALLS或VPO的分子量測定。 Dextran系蔗糖經(jīng)腸膜狀明串珠菌-1226(Leuco
nostoc mesenteroides)發(fā)酵合成的一種高分子葡萄糖聚合物，是目前的血漿代用品之一。其主要用途為：右旋糖酐Mw 5000 生產(chǎn)右旋糖酐鐵的原料；可合成右旋糖酐硫酸酯及其他多種衍生物
右旋糖酐Mw 7000 用于治療人體缺血性，可合成右旋糖酐硫酸酯及其他多種衍生物
右旋糖酐Mw 10000 用于生產(chǎn)右旋糖酐鐵,修飾超氧化物歧化酸等特殊用途
右旋糖酐Mw 20000 用于臨床輸液，合成葡聚糖凝膠及其他重要衍生物；具擴(kuò)充血容量，改善微循環(huán)、防止形成及滲透性
右旋糖酐Mw 40000 用于膠片涂層，臨床輸液，合成葡聚糖凝膠及其他重要衍生物；具擴(kuò)充血容量，改善微循環(huán)、防止形成及滲透性；
右旋糖酐Mw 70000 制備右旋糖酐輸液，隱形眼鏡藥水
右旋糖酐Mw 100000 主要用于科研
右旋糖酐Mw 150000 主要用于科研
右旋糖酐Mw 250000 用于合成右旋糖酐衍生物產(chǎn)品，尤其是含硫化合物
右旋糖酐Mw 500000 合成其他衍生物產(chǎn)品
右旋糖酐 Mw 50萬以上工業(yè)研究 支鏈型多糖
| 貨號 | Mp | Mw | Mn | IV* (dl/gm) | 包裝 |
| DXT180 | 180 | 180 | 180 | 0.012 | 1.0g |
| DXT350 | 342 | 342 | 342 | 0.016 | 1.0g |
| DXT500 | 505 | 505 | 505 | 0.02 | 1.0g |
| DXT1K | 1,000 | 1,200 | 900 | 0.028 | 1.0g |
| DXT3K | 2,800 | 3,650 | 2,750 | 0.048 | 1.0g |
| DXT20K | 18,500 | 20,100 | 14,300 | 0.106 | 1.0g |
| DXT25K | 20,500 | 25,500 | 17,900 | 0.13 | 1.0g |
| DXT31K | 30,000 | 31,200 | 23,300 | 0.173 | 1.0g |
| DXT33K | 29,200 | 33,500 | 22,800 | 0.158 | 1.0g |
| DXT36K | 32,500 | 36,300 | 25,300 | 0.181 | 1.0g |
| DXT41K | 36,700 | 41,400 | 30,200 | 0.18 | 1.0g |
| DXT43K | 35,000 | 42,750 | 28,700 | 0.178 | 1.0g |
| DXT44K | 40,900 | 44,100 | 34,100 | 0.205 | 1.0g |
| DXT47K | 43,000 | 47,250 | 30,250 | 0.206 | 1.0g |
| DXT55K | 49,600 | 55,500 | 41,200 | 0.239 | 1.0g |
| DXT60K | 52,800 | 59,900 | 42,400 | 0.208 | 1.0g |
| DXT62K | 52,600 | 62,600 | 40,800 | 0.232 | 1.0g |
| DXT72K | 62,900 | 72,700 | 50,700 | 0.238 | 1.0g |
| DXT91K | 81,000 | 91,100 | 63,250 | 0.263 | 1.0g |
| DXT97K | 85,000 | 97,000 | 64,700 | 0.273 | 1.0g |
| DXT102K | 87,500 | 102,000 | 64,000 | 0.293 | 1.0g |
| DXT111K | 98,300 | 111,000 | 64,500 | 0.312 | 1.0g |
| DXT123K | 97000 | 123500 | 77700 | 0.305 | 1.0g |
| DXT130K | 111,900 | 131,400 | 97,900 | 0.324 | 1.0g |
| DXT144K | 108,500 | 144,100 | 81,300 | 0.338 | 1.0g |
| DXT160K | 131,100 | 158,100 | 108,100 | 0.35 | 1.0g |
| DXT225K | 212,500 | 226,700 | 160,700 | 0.396 | 1.0g |
| DXT235K | 205,200 | 236,100 | 123,900 | 0.467 | 1.0g |
| DXT275K | 238,000 | 275,900 | 204,600 | 0.463 | 1.0g |
| DXT300K | 285,000 | 291,600 | 231,400 | 0.45 | 1.0g |
| DXT310K | 303,000 | 310,600 | 226,700 | 0.472 | 1.0g |
| DXT325K | 245,000 | 326,600 | 205,000 | 0.35 | 1.0g |
| DXT345K | 310,200 | 344,800 | 186,800 | 0.49 | 1.0g |
| DXT420K | 378,200 | 421,600 | 239,100 | 0.552 | 1.0g |
| DXT500K | 445,000 | 490,500 | 263,300 | 0.547 | 1.0g |
| DXT530K | 490,000 | 534,000 | 371,000 | 0.633 | 1.0g |
| DXT555K | 455,000 | 555,500 | 375,300 | 0.637 | 1.0g |
| DXT600K | 535,600 | 606,200 | 432,100 | 0.659 | 1.0g |
| DXT655K | 620,000 | 655,200 | 488,900 | 0.692 | 1.0g |
| DXT700K | 623,900 | 714,500 | 982,100 | 0.692 | 1.0g |
| DXT760K | 621,100 | 759,400 | 513,400 | 0.61 | 1.0g |
| DXT1185K | 1,050,000 | 1,185,000 | 705,000 | 0.862 | 1.0g |
| DXT1900K | 1,616,000 | 1,907,000 | 820,300 | 0.736 | 1.0g |
| DXT2150K | 1,850,000 | 2,150,000 | 1,350,000 | 0.748 | 1.0g |
| DXT2500K | 2,200,000 | 2,500,000 | 1,400,000 | 0.653 | 1.0g |
| DXT2800K | 2,655,000 | 2,800,000 | 1,970,000 | 0.745 | 1.0g |
| DXT3000K | 2,800,000 | 3,000,000 | 1,230,000 | 0.767 | 1.0g |
| DXT3450K | 2,900,000 | 3,450,000 | 2,000,000 | 0.828 | 1.0g |
| DXT3800K | 2,285,000 | 3,800,000 | 1,500,000 | 1.685 | 1.0g |
| DXT5500K | 3,900,000 | 5,500,000 | 2,100,000 | 0.889 | 1.0g |
| DXT5900K | 6,300,000 | 5,900,000 | 3,000,000 | 1.045 | 1.0g |
如果您對上述產(chǎn)品感興趣，
聯(lián)系電話：18018625233(同微信) QQ:2303607288 寬分子量分布，支鏈型多糖 | 貨號 | Mw | Mn | IV* (dl/gm) | 包裝 |
| D6100K | 6,100,000 | 285,000 | 0.955 | 1.0g |
| D5300K | 5,348,000 | 1,002,000 | 1.114 | 1.0g |
| D3755K | 3,755,000 | 1,385,000 | 1.679 | 1.0g |
| D2400K | 2,457,000 | 197,400 | 0.671 | 1.0g |
| D2200K | 2,216,000 | 1,348,000 | 1.263 | 1.0g |
| D1740K | 1,740,000 | 152,400 | 0.638 | 1.0g |
| D1170K | 1,169,000 | 603,000 | 0.859 | 1.0g |
| D970K | 970,000 | 555,000 | 0.836 | 1.0g |
| D855K | 855,500 | 345,300 | 0.755 | 1.0g |
| D730K | 730,200 | 418,400 | 0.721 | 1.0g |
| D630K | 636,400 | 535,300 | 0.596 | 1.0g |
| D515K | 515,000 | 158,000 | 0.508 | 1.0g |
| D455K | 456,800 | 180,000 | 0.578 | 1.0g |
| D400K | 405,700 | 170,300 | 0.475 | 1.0g |
| D215K | 214,800 | 62,100 | 0.36 | 1.0g |
| D130K | 129,000 | 30,500 | 0.285 | 1.0g |
| D60K | 60,300 | 35,350 | 0.223 | 1.0g |
| D50K | 46,800 | 27,700 | 0.19 | 1.0g |
| D40K | 41,100 | 24,000 | 0.186 | 1.0g |
| D18K | 17,900 | 11,650 | 0.119 | 1.0g |
| D16K | 16,230 | 7,870 | 0.118 | 1.0g |
| D10K | 9,900 | 6,700 | 0.089 | 1.0g |
| D9K | 9,200 | 6,250 | 0.085 | 1.0g |
| D7K | 7,200 | 3,160 | 0.085 | 1.0g |
| D4K | 4,300 | 2,160 | 0.058 | 1.0g |
| D1K | 1,010 | 510 | 0.028 | 1.0g |
如果您對上述產(chǎn)品感興趣，聯(lián)系電話：18018625233(同微信) QQ:2303607288 葡聚糖標(biāo)準(zhǔn)品套裝 | 貨號 | 套裝組成 | 包裝 |
| LDXTKIT | DXT180 - DXT36K | 各1.0g |
| MDXTKIT | DXT41K - DXT144K | 各1.0g |
| HDXTKIT | DXT160K - DXT420K | 各1.0g |
| HDXTKIT-2 | DXT500K - DXT1185K | 各1.0g |
| UHDXTKIT | DXT1900K - DXT5900K | 各1.0g |
| DXTBRKIT | D1K - D6100K | 各1.0g |
IV* - Intrinsic Viscosity in0.05MSodium Sulfate at30°C
Mark-Houwink Parameters
DXT180 - DXT144K: a = 0.50; K = 0.00090
DXT160K - D1185K: a = 0.50; K = 0.00098
DXT1900K - DXT5900K: a = 0.267; K = 0.0194
D6100K - D1K: a = 0.50; K = 0.00090 如果您對上述產(chǎn)品感興趣，聯(lián)系電話：18018625233(同微信) QQ:2303607288
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