德国Dr.Ehrenstorfer标准品 北京吉瑞森科技提供德国Dr标准品,该公司是欧洲主要提供环境标准品的公司之一。 DR产品分类包括:偶氮染料及芳香胺,食品添加剂,烃类及石油化工,酚类混合物, PCBs多氯联苯,兽药残留对照品,PAH多环芳烃及其混合物, EPA环境方法混合物,VOC有机挥发物及其混合物, 稳定同位素农药对照品,农药及代谢物。
APSC Dextrans 葡聚糖标准品 Dextrans 葡聚糖标准品(Mp.峰位分子量, Mw.重均分子量, Mn.数均分子量,Mz.Z均分子量, IV.粘度值) Low MW(Branched, Polysaccharides)Catalog # Mp Mw Mn IV* DXT180 180 180 180 0.012DXT350 342 342 342 0.016DXT500 505 505 505 0.020DXT1K 1,000 1,200 900 0.028DXT3K 2,800 3,650 2,750 0.048DXT4K 3,400 4,300 3,250 0.055DXT7K 6,300 6,800 3,700 0.071DXT20K 18,500 19,900 14,300 0.106DXT25K 20,500 25,500 17,900 0.130DXT31K 30,000 31,200 23,200 0.173DXT33K 29,200 33,500 22,800 0.158DXT36 32,500 36,300 25,300 0.181LDXTKIT (1.0g of each standard + Blue Dextran)IV* - Intrinsic Viscosity (dL/g) in 0.05M Sodium Sulfate at 30°C(a = 0.50; K = 0.00090)IV, a, and K s are also available in 0.2M Sodium Nitrate at 45°CMedium MW(Branched, Polysaccharides)Catalog Mp Mw Mn IV* DXT41K 36,700 41,400 30,200 0.180DXT43K 35,000 42,750 28,700 0.178DXT44K 40,900 44,100 34,100 0.205DXT47K 43,000 47,250 30,250 0.206DXT55K 50,200 54,600 41,100 0.228DXT60K 52,800 59,900 42,400 0.208DXT62K 52,600 62,600 40,800 0.232DXT69K 59,600 68,900 50,600 0.235DXT72K 62,900 72,700 50,700 0.238DXT85K 64,400 84,600 53,000 0.260DXT91K 81,000 91,100 63,250 0.263DXT97K 85,000 97,000 64,700 0.273DXT102K 87,500 102,000 64,000 0.293DXT111K 98,300 111,000 64,500 0.312DXT125K 110,000 123,400 96,900 0.305DXT130K 111,900 131,400 97,900 0.324DXT145K 131,000 145,000 90,000 0.371MDXTKIT (1.0g of each standard + Blue Dextran)IV* - Intrinsic Viscosity (dL/g) in 0.05M Sodium Sulfate at 30°C(a = 0.50; K = 0.00090)High MW(Branched, Polysaccharides)Catalog # Mp Mw Mn IV* DXT160K 131,100 158,100 108,100 0.350DXT200K 195,100 207,200 147,400 0.378DXT215K 210,000 218,500 142,900 0.432DXT225K 212,500 226,700 160,700 0.396DXT235K 205,200 236,100 123,900 0.467DXT249K 219,200 490,000 132,300 0.469DXT260K 234,200 260,600 148,100 0.450DXT275K 238,000 275,900 204,600 0.463DXT300K 265,300 291,600 204,200 0.433DXT310K 303,000 310,600 226,700 0.472DXT325K 245,000 326,600 205,000 0.350DXT345K 310,200 344,800 186,800 0.490DXT395K 336,900 395,000 195,200 0.526DXT410K 359,900 405,300 200,400 0.532DXT430K 384,500 431,800 229,600 0.552DXT440K 348,200 443,200 204,100 0.538HDXTKIT-1 (1.0g of each standard + Blue Dextran)IV* - Intrinsic Viscosity (dL/g) in 0.05M Sodium Sulfate at 30°C(a = 0.50; K = 0.00098)High MW(Branched, Polysaccharides)Catalog # Mp Mw Mn IV* DXT515K 415,000 515,900 318,400 0.513DXT530K 490,000 534,000 371,000 0.633DXT550K 350,000 548,300 346,500 0.560DXT600K 535,,600 606,200 432,100 0.659DXT655K 620,000 655,200 488,900 0.692DXT700K 623,900 714,500 982,100 0.692DXT760K 621,100 759,400 513,400 0.610DXT915K 901,600 913,400 390,300 0.612DXT950K 846,200 950,600 415,300 0.632DXT975K 874,500 978,400 697,000 0.818DXT1040K 918,100 1,040,000 445,900 0.659DXT1185K 1,050,000 1,185,000 705,000 0.862DXT1300K 1,199,000 1,360,000 877,800 0.918HDXTKIT-2 (1.0g of each standard + Blue Dextran)IV* - Intrinsic Viscosity (dL/g) in 0.05M Sodium Sulfate at 30°C(a = 0.50; K = 0.00098)(注释:Mp.峰位分子量, Mw.重均分子量, Mn.数均分子量,Mz.Z均分子量, IV.粘度值)Ultra High MW(Branched, Polysaccharides)Catalog # Mp Mw Mn IV* DXT1400K 1,285,000 1,482,000 817,750 0.706DXT1900K 1,616,000 1,907,000 820,300 0.736DXT2000K 1,500,000 2,025,000 928,800 0.713DXT2100K 1,465,000 2,100,000 810,000 0.742DXT2360K 2,225,000 2,365,000 1,730,000 0.742DXT2370K 2,300,000 2,370,000 1,700,000 0.740DXT2450K 2,100,000 2,450,000 978,000 0.726DXT2580K 2,250,000 2,580,000 1,025,000 0.728DXT2800K 2,655,000 2,800,000 1,970,000 0.745DXT3000K 2,800,000 3,000,000 1,230,000 0.767DXT3450K 3,450,000 3,500,000 2,000,000 1.002DXT3800K 2,285,000 3,800,000 1,500,000 1.685DXT4200K 4,000,000 4,200,000 2,400,000 0.893DXT5500K 3,900,000 5,500,000 2,100,000 0.889DXT5900K 6,300,000 5,900,000 3,000,000 1.045UHDXTKIT (1.0g of each standard + Blue Dextran)IV* - Intrinsic Viscosity (dL/g) in 0.05M Sodium Sulfate at 30°C(a = 0.267; K = 0.0194)(Branched, Broad MW)Catalog # Mw Mn IV* D6100K 6,100,000 285,000 0.955D5300K 5,348,000 1,002,000 1.114D3755K 3,755,000 1,385,000 1.679D2400K 2,457,000 197,400 0.671D2200K 2,216,000 1,348,000 1.263D1740K 1,740,000 152,400 0.638D1500K 1,580,000 188,400 0.620D1170K 1,169,000 603,000 0.859D970K 970,000 555,000 0.836D855K 855,500 345,300 0.755D770K 778,000 495,500 0.748D730K 730,200 418,400 0.721D630K 636,400 535,300 0.596D515K 515,000 158,000 0.508D455K 456,800 180,000 0.578D400K 405,700 170,300 0.475D215K 214,800 62,100 0.360D170K 172,000 79,500 0.413D130K 129,000 30,500 0.285D60K 60,300 35,350 0.223D50K 46,800 27,700 0.190D40K 39,900 26,200 0.186D18K 17,900 11,650 0.119D16K 16,230 7,870 0.118D10K 9,900 6,700 0.089D9K 9,200 6,250 0.085D7K 7,200 3,160 0.085D4K 4,300 2,160 0.058D1K 1,010 510 0.028Blue Dextran Used for visual determination of interstitial volumeDXTBRKIT (1.0g of each standard)IV* - Intrinsic Viscosity (dL/g) in 0.05M Sodium Sulfate at 30°C(a = 0.50; K = 0.00090)(Branched, Polysaccharides)Catalog # Mp Mw Mn IV* Dextran 410 276,500 403,000 239,900 0.554Dextran 270 196,300 262,000 167,500 0.494Dextran 150 123,600 143,000 98,550 0.394Dextran 80 66,700 79,800 55,600 0.315Dextran 50 43,500 50,800 36,650 0.230Dextran 25 21,400 22,700 17,950 0.169Dextran 1 1,080 1,270 1,035 0.028IV* - Intrinsic Viscosity (dL/g) in Water 25°C(a = 0.50; K = 0.000978)(注释:Mp.峰位分子量, Mw.重均分子量, Mn.数均分子量,Mz.Z均分子量, IV.粘度值) Standards Listed Below are Sold as a Kit Only(Branched, Polysaccharides)Catalog # Mp Mw Mn IV* Dextran 670 401,300 676,000 349,300 0.708Dextran 410 276,500 403,000 239,900 0.554Dextran 270 196,300 262,000 167,500 0.494Dextran 150 123,600 143,000 98,550 0.394Dextran 80 66,700 79,800 55,600 0.315Dextran 50 43,500 50,800 36,650 0.230Dextran 25 21,400 22,700 17,950 0.169Dextran 12 9,900 11,700 8,000 0.112Dextran 5 4,440 5,700 3,325 0.078Dextran 1 1,080 1,270 1,035 0.028DextranKit (800mg of each standard)IV* - Intrinsic Viscosity (dL/g) in Water 25°C(a = 0.50; K = 0.000978)