MDL：
MFCD00081638

Alias：
白明膠,動(dòng)物膠,筋膠,銀明膠

Product order：

Name	Specifications	Packing	Price	Delivery
Gelatin	Type B	50g	RMB 297	現(xiàn)貨
Gelatin	Type B	100g	RMB 528	現(xiàn)貨
Gelatin	CP	500g	RMB 108.9
Gelatin	BC	500g	RMB 130.9
Gelatin	藥用級(jí)，gel strength ~240 g Bloom	500g	RMB 130.9
Gelatin	照相級(jí)，gel strength ~250 g Bloom	500g	RMB 130.9
Gelatin	gel strength ~100 g Bloom	500g	RMB 130.9

Character：
無色或淺黃色透明或半透明等薄片或粉粒，。系高分子水溶性蛋白質(zhì)的混合體，幾乎無臭，無味，在冷水中吸水膨脹，能膨脹至原重量的5～10倍。溶于熱水、甘油和乙酸，不溶于乙醇、乙醚、氯仿等有機(jī)溶劑。無味、無臭。溶于熱水，冷卻后，凍成凝膠狀。在干燥情況下能長(zhǎng)期儲(chǔ)存，遇濕空氣受潮后，很容易受細(xì)菌作用而變質(zhì)。 

Quality Standard：
項(xiàng)目Item                                         生化試劑    
                                                  (BC)
膠凍強(qiáng)度gel strength ，Bloom g                  ≥ 250 （按水份12%商品膠6.67%）      
臭氣與水中不溶物Odour and insoluble matter         合格        
灰分Ash,%                                       ≤ 3.0        
亞硫酸鹽(SO3)Sulfite                               合格        
砷(As)Arsenic,%                                 ≤ 0.0003      
重金屬(以Pb計(jì))Heavy metals,%                    ≤ 0.01        
干燥失重loss on drying,%                        ≤ 17.0  

備注：生化試劑級(jí)適用于細(xì)胞培養(yǎng)。
  

項(xiàng)目                                            化學(xué)純
                                                  CP
外觀:                                           黃色或微黃色塊狀或半透明，微帶光澤的粉粒
粘度(15%濃度):                                  ≥ 15 ° E
透明度:                                         ≥ 100mm
水份,%                                          ≤ 16
灰份,%                                          ≤ 2
PH 值(1%)                                       5.5-7.0
重金屬(Pb),%                                    ≤ 0.008

品級(jí)Grade                                       藥用級(jí)  
                                        (Ph Eur ，USP,BP)
水  份  %                                      ≤ 14.0
膠凍強(qiáng)度gel strength ，Bloom g                ≥ 240 （按水份12%商品膠6.67%）
勃氏粘度（按水份12%商品膠6.67%）mPa·S         ≥ 4.7  
粘度下降 %                                     ≤ 7.0
透明度  mm                                     ≥ 450  
透過率 450nm                                   ≥ 90  
灰  份   %                                     ≤ 0.8  
二氧化硫mg/kg                                  ≤ 40
PH  值 5.0～6.5
水不溶物  %                                   ≤ 0.2
鉻含量   ppm                                  ≤ 0.2
砷含量   ppm                                  ≤ 0.8
重金屬   ppm                                  ≤ 50
細(xì)菌總數(shù) 個(gè)/g                                 ≤ 800
霉菌     個(gè)/g                                 ≤ 100
大腸桿菌                                      不得檢出
沙門氏菌                                      不得檢出

品級(jí)Grade                                       照相級(jí)  
                                        (Photography class)
水分                                          ≤ 14.0  
膠凍強(qiáng)度gel strength ，Bloom g                ≥ 250 （按水份12%商品膠6.67%）
粘度 mpa-s                                    ≥ 4.0  
粘度下降 %                                    ≤ 10.0
凍點(diǎn) ≥                                        26.5  
透過率 450nm                                  ≥ 80  
620nm                                         ≥ 95  
溶解時(shí)間 min                                  ≤ 20  
PH值 pn                                       5.5~6.5
灰 分 %                                       ≤ 1.0  
二氧化硫 ppm                                  ≤ 20  
活性硫 ppm                                    ≤ 2.0  
易變硫 ppm                                    ≤ 2.0  
等電點(diǎn) ph                                     4.7~5.0
不溶物 %≤                                    0.2  
油脂凹點(diǎn) 個(gè)/dm2                                2  
鐵 ppm                                        ≤ 10.0  
氯化物 %                                      ≤ 0.03  
銅 ppm                                        ≤ 3  

Storage：
密封干燥保存，防止霉變。
用途  極譜法測(cè)銅，堿性鍍鋅發(fā)光劑，測(cè)二氧化硅，鑒別培養(yǎng)基的配制，比濁及比色測(cè)定中的保護(hù)膠體。