9057-02-7 普魯蘭多糖（聚麥芽三糖）

9057-02-7 普魯蘭多糖(聚麥芽三糖) 子起生物

數(shù)均分子量（Number-average molecular weight）：按聚合物中含有的分子數(shù)目統(tǒng)計平均的分子量，高分子樣品中所有分子的總重量除以其分子(摩爾)總數(shù)。

重均分子量（ Weight-average molecular weight）：按照聚合物的重量進行統(tǒng)計平均的分子量，i-聚體的分子量乘以其重量分數(shù)的加和。

Z均分子量（Z-average molecular weight ）：按照Z值統(tǒng)計平均的分子量

粘均分子量（Viscosity- average molecular weight）：對于一定的聚合物－溶劑體系，其特性粘數(shù)[η]不同。

Mz > Mw > Mv > Mn，Mv略低于Mw

Mn靠近聚合物中低分子量的部分，即低分子量部分對Mn影響較大

Mw靠近聚合物中高分子量的部分，即高分子量部分對Mw影響較大

9057-02-7 普魯蘭多糖(聚麥芽三糖) 子起生物 4OO-8II-9O8I

一般用Mw來表征聚合物比Mn更恰當，因為聚合物的性能如強度、熔體粘度更多地依賴于樣品中較大的分子。

（1）線性多聚糖（普魯蘭多糖/聚麥芽三糖）套裝

Linear Polysaccharides (Pullulan or Polymaltotriose) Kit

Catalog # Mp Mw Mn IV*

PullulanKit The standards listed below are sold only as a kit

  708,000 805,000 636,000 1.586

  344,000 366,000 318,000 0.977

  200,000 210,000 189,000 0.690

  107,000 113,000 100,000 0.447

  47,100 48,800 45,500 0.257

  21,100 21,700 20,000 0.150

  9,600 10,000 9,200 0.089

  5,900 6,000 5,500 0.065

The Standards Listed Above Are Sold Only As A Kit  

PullulanKit: 200mg of each standard listed above  

IV* - Intrinsic Viscosity (dL/g) in 0.05M Sodium Sulfate at 30°C

(a = 0.665; K = 0.000201)

9057-02-7 普魯蘭多糖(聚麥芽三糖) 子起生物 4OO-8II-9O8I

（2）線性多聚糖（普魯蘭多糖/聚麥芽三糖）標準品

Individual Pullulan Standards  

Catalog # Mp Mw Mn IV*

P70K 65,000 70,000 47,000 0.341

P97K 95,000 97,100 64,900 0.403

P105K 98,000 105,000 63,000 0.417

P110K 108,000 109,400 77,600 0.428

P130K 126,100 132,600 81,200 0.542

P160K 166,600 164,900 109,900 0.570

P175K 172,600 175,500 109,000 0.596

P192K 186,300 191,800 124,000 0.566

P200K 202,900 202,100 134,000 0.683

P215K 218,900 217,300 146,000 0.675

P256K 250,000 256,000 160,000 0.706

P270K 273,700 273,700 179,300 0.784

P290K 285,100 293,500 189,900 0.861

P300K 294,400 306,300 188,200 0.889  

P325K 299,000 325,700 192,700 0.900

P360K 336,400 360,400 221,700 0.955

P580K 501,600 586,800 365,300 1.377

P650K 483,100 657,900 322,400 1.408

P760K 596,300 762,300 381,000 1.464

P825K 610,000 825,300 444,900 1.631  

200mg of each standard listed above  

IV* - Intrinsic Viscosity (dL/g) in 0.05M Sodium Sulfate at 30°C

(a = 0.665; K = 0.000201)

9057-02-7 普魯蘭多糖(聚麥芽三糖) 子起生物 4OO-8II-9O8I

（3）寬分子量分布普魯蘭多糖

Broad MWD Pullulan  

Catalog # Mw Mn Mz IV*

PBR290K 290,000 36,600 790,800 0.673

PBR120K 120,000 46,200 215,000 0.379

PBR115K 114,900 45,200 178,600 0.467

PBR100K 98,200 39,000 215,000 0.342

PBR30K 30,800 12,400 52,800 0.224  

IV* - Intrinsic Viscosity (dL/g) in 0.05M Sodium Sulfate at 30°C

(a = 0.665; K = 0.000201)

1.0g包裝

注解：

Mn  Number average molecular weight

Mp  Peak average molecular weight

Mv  Viscosity average molecular weight

Mw  Weight average molecular weight

Mz  Z-average molecular weight

IV*  Intrinsic Viscosity (dl/gm)

9057-02-7 普魯蘭多糖(聚麥芽三糖) 子起生物 4OO-8II-9O8I