品名 | 規(guī)格 | 包裝 | 單價(jià) | 貨期 |
蔗糖 | >99.9% | 250g | 148.5元 | 現(xiàn)貨 |
蔗糖 | ACS | 500g | 82.5元 | 現(xiàn)貨 |
蔗糖 | AR | 500g | 41.8元 | 現(xiàn)貨 |
蔗糖 | 超純級(jí) 純度≥99.9%;RNase,DNase Free | 500g | 317.9元 | 咨詢客服 |
ACS級(jí)
項(xiàng)目名稱 ACS Grade
比旋光度[α]25℃D Specific rotation +66.3°- +66.8°
水不溶物Insoluble matter ≤0.005%
干燥失重Loss on drying ≤0.03%
灼燒殘?jiān)黂esidue after ignition ≤0.01%
可滴定酸Titrable acid ≤0.0008meq/g
氯化物(Cl)Chloride ≤0.005%
硫酸鹽和亞硫酸鹽
(以SO4計(jì))Sulfate and sulfite ≤0.005%
重金屬(以Pb計(jì))Heavy metals ≤5ppm
鐵(Fe)Iron(Fe) ≤5ppm
還原糖Invert sugar ≤0.05%
品級(jí)Grade 分子生物學(xué)級(jí)
(for molecular biology, ≥99.5% (HPLC))
含量assay ≥99.5% (HPLC)
DNA酶DNases, none detected
RNA酶RNases, none detected
不溶物insoluble matter, passes filter test
磷酸酶phosphatases, none detected
蛋白酶proteases, none detected
比旋光度Specific rotation [a]20/D 66.3 to 66.8°, c = 26% in H2O
游離酸free acid ≤0.0008 meq/g
水不溶物water insoluble matter ≤0.005%
轉(zhuǎn)化糖invert sugar ≤0.05%
重金屬heavy metals (as Pb) ≤5 ppm
灼燒殘?jiān)黫gn. residue ≤0.01% (as SO4)
干燥損失loss on drying ≤0.03% , 105 °C
熔點(diǎn)mp 185-187 °C
水溶性solubility H2O: soluble0.1 g/mL, clear, colorless
氯chloride (Cl-): ≤50 ppm
硫酸根sulfate (SO42-): ≤50 ppm
λ 1 M in H2O
UV absorption
λ: 260 nm A: ≤0.11
λ: 280 nm A: ≤0.08
品級(jí)Grade 細(xì)胞和昆蟲細(xì)胞培養(yǎng)級(jí)
(for cell culture , forinsect cell culture)
外觀Appearance 白色結(jié)晶
紅外光譜鑒別Infrared spectrometry Conforms
純度Purity ≥99.5% (GC)
水溶性solubility H2O: soluble500 mg/mL , clear, colorless
比旋光度Specific rotation [a]20/D 66.3 to 66.8°, c = 26% in H2O
UV absorption
λ: 260 nm A: ≤0.15 (100% SOLUTION)
λ: 280 nm A: ≤0.15 (100% SOLUTION)
重金屬heavy metals (as Pb) ≤ 0.0005% (ASLEAD)
Cell culture test PASS
Insect cell culture test PASS
品級(jí)Grade 植物細(xì)胞培養(yǎng)級(jí)
(用于植物細(xì)胞培養(yǎng))
外觀Appearance 白色粉末
紅外光譜鑒別Infrared spectrometry Conforms
純度Purity ≥99.5% (GC)
熔點(diǎn)Melting point 185°C - 187°C
水溶解試驗(yàn)solubility in water 5GM/10ML water,Clear colorless to faint yellow solution
重金屬heavy metals (as Pb) ≤ 0.0005% (ASLEAD)
UV absorption
λ: 260 nm A: ≤0.15 (100% SOLUTION)
λ: 280 nm A: ≤0.15 (100% SOLUTION)
植物細(xì)胞培養(yǎng)測(cè)試PLANT CELL CULTURE PASS
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