Name | Specifications | Packing | Price | Delivery |
Chitosan | 脱乙酰95% 粘度:100 mPa.s | 100g | RMB 308 | 现货 |
Chitosan | 高粘度>400 mPa.s | 500g | RMB 1038.4 | 促销 |
Chitosan | 高粘度>400 mPa.s | 100g | RMB 246.4 | 促销 |
Chitosan | 高粘度>400 mPa.s | 25g | RMB 103.4 | 促销 |
Chitosan | 中粘度200-400 mPa.s | 500g | RMB 1038.4 | 促销 |
Chitosan | 中粘度200-400 mPa.s | 100g | RMB 246.4 | 促销 |
Chitosan | 中粘度200-400 mPa.s | 25g | RMB 103.4 | 促销 |
Chitosan | 低粘度:<200 mPa.s | 500g | RMB 1038.4 | 促销 |
Chitosan | 低粘度:<200 mPa.s | 100g | RMB 246.4 | 促销 |
Chitosan | 低粘度:<200 mPa.s | 25g | RMB 103.4 | 促销 |
Chitosan | BR,水溶性 | 500g | RMB 976.8 | 现货 |
Chitosan | BR,水溶性 | 100g | RMB 316.8 | 现货 |
Chitosan | BR | 500g | RMB 239.8 | 现货 |
Chitosan | BR | 250g | RMB 140.8 | 现货 |
外观Appearance 类白色至黄褐色粉末或颗粒
脱乙酰度Deacetylation value ≥95%
水份Water <8 % (K.F.)
灰份Ash <1 %
粘度viscosity ≤100mpa.s
砷Arsenic(以As计) ≤0.5ppm
重金属Heavy metals(as Pb) ≤10ppm
堆积密度bulk density ≥0.6 g/ml
细菌菌落总数bacterial count ≤1000cfu/g
大肠杆菌E.coli ≤30 cfu/g
沙门氏菌Salmonella 不得检出
羧化壳聚糖:(水溶性壳聚糖)
外观Appearance 透明至半透明白色或微黄色不定形固体
羧化度Carboxylation ≥60%
粘度viscosity(1%水溶液) 10-80mpa.s
pH (1%的水溶液) 6.0-8.0
干燥失重Loss on drying ≤15.0%
不溶物Insoluble matter < 0.5%
重金属Heavy metals < 5.0ppm
低粘度(<200 mPa.s):
不溶物insoluble matter ≤1%
灼烧残渣ign. residue ≤2% (as SO4)
干燥损失loss on drying ≤10%
粘度viscosity <200 mPa.s, 1 % in acetic acid(20 °C)
中粘度(200-400 mPa.s):
不溶物insoluble matter ≤1%
灼烧残渣ign. residue ≤2% (as SO4)
干燥损失loss on drying ≤10%
粘度viscosity 200-400 mPa.s, 1 % in acetic acid(20 °C)
高粘度(>400 mPa.s):
不溶物insoluble matter ≤1%
灼烧残渣ign. residue ≤2% (as SO4)
干燥损失loss on drying ≤12%
粘度viscosity >400 mPa.s, 1 % in acetic acid(20 °C)
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