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英國Whatman沃特曼硝酸纖維素濾膜

英國Whatman沃特曼硝酸纖維素濾膜 | 時(shí)間: March-3 22:35:50 | 分類:其它儀器

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 英國Whatman沃特曼硝酸纖維素濾膜

    推薦用于大多數(shù)日常應(yīng)用,是在嚴(yán)格控制室內(nèi)清潔條件下生產(chǎn)的。Whatman膜可以保證非常窄的孔徑分布非常低的雜質(zhì),這些都可以讓用戶受益。 
更高的強(qiáng)度和韌性
大多數(shù)膜本質(zhì)上都很脆而且不容易操作,但是很少在裝載到過濾器或在使用過程中損壞。Whatman硝酸纖維素膜韌性得到明顯增強(qiáng),能承受住在不破壞膜完整性的條件下操作、裝載和消毒時(shí)的撕裂。在同類產(chǎn)品中經(jīng)測(cè)試已經(jīng)是較強(qiáng)韌的膜。 
低可提取物水平
濾膜中可提取物水平和過濾或吸附技術(shù)的改進(jìn)一樣變得越來越重要。尤其是在藥學(xué)、免疫學(xué)、生物學(xué)組織培養(yǎng)和衡量分析應(yīng)用方面,高的提取物水平會(huì)起到負(fù)面影響。Whatman硝酸纖維素膜的提取物水平一般比其他同種型號(hào)都低。 
精控的孔徑分布
Whatman濾膜的一個(gè)重要特征就是孔徑精確度很高。膜的孔徑率徑先進(jìn)的生產(chǎn)和控制系統(tǒng)嚴(yán)格控制。另外批間差小,可以保持實(shí)驗(yàn)結(jié)果的一致性。 
增加的溫度穩(wěn)定性
濾膜可以在不失完整的情況下在121攝氏度下進(jìn)行正常消毒。硝酸纖維素膜有圓片、方片和卷等不同規(guī)格。 
收縮量減少
過多的收縮在消毒過程中會(huì)產(chǎn)生問題,也經(jīng)常會(huì)在消毒后在濾器中發(fā)生破裂,也可能導(dǎo)致流速的降低和整個(gè)過濾量的減少。Whatman濾膜在消毒過程中收縮量很低。 
特征和優(yōu)點(diǎn)
·孔徑分布精確能改進(jìn)表面捕獲和分析提取物水平低,保證樣品的完整性。 
應(yīng)用
·樣品分離
·微生物研究
·水溶液過濾 
過濾膜類型 
白色光滑濾膜
這是大多數(shù)實(shí)驗(yàn)室應(yīng)用的標(biāo)準(zhǔn)濾膜,用于1.0um-5.0um大小的顆粒和細(xì)胞。
過濾后的殘留物大多數(shù)保留在膜的表面,可以進(jìn)行沉淀物物理性回收和顯微鏡觀察。 
網(wǎng)格濾膜
有網(wǎng)格的濾膜使得顆粒、微生物、菌落的計(jì)數(shù)變得容易。如需要網(wǎng)格膜,請(qǐng)查詢混合纖維素酯膜。
技術(shù)參數(shù)-硝酸纖維素膜

 
硝酸纖維
厚度
125μm
爆裂強(qiáng)度
>2 psi
重量
3.6-5.5 mg/cm²
較高操作溫度
80℃
孔率
66-84%
蒸汽高壓滅菌
yes
親水性
yes                                                                                

典型應(yīng)用-硝酸纖維素膜
應(yīng)用領(lǐng)域
孔徑(μm)
普通
微過濾
0.1
超凈
0.1
滅菌
0.2
去除大多數(shù)微生物
0.45
分析性沉淀物
0.65
純化過濾
1
去除顆粒物
5
水中微生物分析
細(xì)菌計(jì)數(shù)
0.45(網(wǎng)格)
應(yīng)用領(lǐng)域
孔徑(μm)
沉淀物分析
0.45
懸浮顆粒
5
空氣污染監(jiān)測(cè)
Asbestos Monitoring(NIOSH)
0.8
食品飲料控制
大腸桿菌
0.45(網(wǎng)格)見混合纖維素酯膜
總細(xì)菌計(jì)數(shù)
0.2
組織培養(yǎng)基
去除支原體
0.1
滅菌過濾
0.2

訂購信息-硝酸纖維素膜

0.1μm硝酸纖維素膜
貨號(hào)
數(shù)量/包裝
直徑
Cellulose Nitrate Membrane Circle, plain, 0.1 µm pore size, 25 mm
7181-002
100 Pieces
25mm
Cellulose Nitrate Membrane Circle, plain, 0.1 µm pore size, 47 mm
10402012
100 Pieces
47mm
Cellulose Nitrate Membrane Circle, plain, 0.1 µm pore size, 47 mm
7181-004
100 Pieces
47mm
Cellulose Nitrate Membrane Circle, plain, 0.1 µm pore size, 50 mm
10402014
100 Pieces
50mm
0.2μm硝酸纖維素膜
貨號(hào)
數(shù)量/包裝
直徑
Cellulose Nitrate Membrane Circle, plain, 0.2 µm pore size, 25 mm
10401306
100 Pieces
25 mm
Cellulose Nitrate Membrane Circle, plain, 0.2 µm pore size, 47 mm
10401312
100 Pieces
47 mm
Cellulose Nitrate Membrane Circle, plain, 0.2 µm, 50 mm
10401314
100 Pieces
50 mm
Cellulose Nitrate Membrane Circle, plain, 0.2 µm pore size, 13 mm
7182-001
100 Pieces
13 mm
Cellulose Nitrate Membrane Circle, plain, 0.2 µm pore size, 25 mm
7182-002
100 Pieces
25 mm
Cellulose Nitrate Membrane Circle, plain, 0.2 µm pore size, 47 mm
7182-004
100 Pieces
47 mm
Cellulose Nitrate Membrane Circle, plain, 0.2 µm pore size, 90 mm
7182-009
25 Pieces
90mm
Cellulose Nitrate Membrane Circle, plain, 0.2 µm pore size, 142 mm
7182-014
25 Pieces
142mm
0.45μm硝酸纖維素膜
貨號(hào)
數(shù)量/包裝
直徑
NC45 0.45uM 25MM 100/PK
10401106
100 Pieces
25 mm
NC45 0.45uM 47MM 100/PK
10401112
100 Pieces
47 mm
Cellulose Nitrate Membrane Circle, plain, 0.45 µm, 50 mm
10401114
100 Pieces
50 mm
Cellulose Nitrate Membrane Circle, plain, 0.45 µm pore size, 90 mm
10401118
50 Pieces
90 mm
Cellulose Nitrate Membrane Circle, plain, 0.45 µm, 100 mm
10401121
50 Pieces
100 mm
Cellulose Nitrate Membrane Circle, plain, 0.45 µm, 110 mm
10401126
50 Pieces
110 mm
Cellulose Nitrate Membrane Circle, plain, 0.45 µm pore size, 142 mm
10401131
25 Pieces
142 mm
Cellulose Nitrate Membrane Circle, plain, 0.45 µm pore size, 13 mm
7184-001
100 Pieces
13 mm
Cellulose Nitrate Membrane Circle, plain, 0.45 µm pore size, 25 mm
7184-002
100 Pieces
25 mm
Cellulose Nitrate Membrane Circle, plain, 0.45 µm pore size, 47 mm
7184-004
100 Pieces
47 mm
Cellulose Nitrate Membrane Circle, plain, 0.45 µm pore size, 50 mm
7184-005
100 Pieces
50 mm
Cellulose Nitrate Membrane Circle, plain, 0.45 µm pore size, 90 mm
7184-009
25 Pieces
90 mm
Cellulose Nitrate Membrane Circle, plain, 0.45 µm pore size, 142 mm
7184-014
25 Pieces
142 mm
0.65μm硝酸纖維素膜
貨號(hào)
數(shù)量/包裝
直徑
Cellulose Nitrate Membrane Circle, plain, 0.65 µm pore size, 47 mm
7186-004
100 Pieces
47mm
0.8μm硝酸纖維素膜
貨號(hào)
數(shù)量/包裝
直徑
Cellulose Nitrate Membrane Circle, plain, 0.8 µm pore size, 25 mm
7188-002
100 Pieces
25mm
Cellulose Nitrate Membrane Circle, plain, 0.8 µm pore size, 37 mm
7188-003
100 Pieces
37mm
Cellulose Nitrate Membrane Circle, plain, 0.8 µm pore size, 47 mm
7188-004
100 Pieces
47mm
Cellulose Nitrate Membrane Circle, plain, 0.8 µm pore size, 90 mm
7188-009
25 Pieces
90mm
1μm硝酸纖維素膜
貨號(hào)
數(shù)量/包裝
直徑
Cellulose Nitrate Membrane Circle, plain, 1 µm pore size, 25 mm
7190-002
100 Pieces
25mm
Cellulose Nitrate Membrane Circle, plain, 1 µm pore size, 47 mm
7190-004
100 Pieces
47mm
1.2μm硝酸纖維素膜
貨號(hào)
數(shù)量/包裝
直徑
Cellulose Nitrate Membrane Circle, plain, 1.2 µm pore size, 50 mm
7191-005
100 Pieces
50mm
Cellulose Nitrate Membrane Circle, plain, 1.2 µm pore size, 142 mm
7191-014
25 Pieces
142mm
3μm硝酸纖維素膜
貨號(hào)
數(shù)量/包裝
直徑
Cellulose Nitrate Membrane Circle, plain, 3 µm pore size, 25 mm
7193-002
100 Pieces
25mm
Cellulose Nitrate Membrane Circle, plain, 3 µm pore size, 47 mm
7193-004
100 Pieces
47mm
5μm硝酸纖維素膜
貨號(hào)
數(shù)量/包裝
直徑
Cellulose Nitrate Membrane Circle, plain, 5 µm pore size, 25 mm
10400206
100 Pieces
25 mm
Cellulose Nitrate Membrane Circle, plain, 5 µm pore size, 47 mm
10400212
100 Pieces
47 mm
Cellulose Nitrate Membrane Circle, plain, 5 µm, 50 mm
10400214
100 Pieces
50 mm
Cellulose Nitrate Membrane Circle, plain, 5 µm pore size, 25 mm
7195-002
100 Pieces
25 mm
Cellulose Nitrate Membrane Circle, plain, 5 µm pore size, 47 mm
7195-004
100 Pieces
47 mm
Cellulose Nitrate Membrane Circle, plain, 5 µm pore size, 90 mm
7195-009
25 Pieces
90 mm
8μm硝酸纖維素膜
貨號(hào)
數(shù)量/包裝
直徑
Cellulose Nitrate Membrane Circle, plain, 8 µm, 25 mm
10400106
100 Pieces
25 mm
Cellulose Nitrate Membrane Circle, plain, 8 µm, 47 mm
10400112
100 Pieces
47mm
Cellulose Nitrate Membrane Circle, plain, 8 µm, 50 mm
10400114
100 Pieces
50 mm
Cellulose Nitrate Membrane Circle, plain, with hydrophobic rim, 8 µm, 50 mm
10405079
100 Pieces
50 mm
Cellulose Nitrate Membrane Circle, plain, 8 µm, 25 mm
10406012
100 Pieces
25 mm
12μm硝酸纖維素膜
貨號(hào)
數(shù)量/包裝
直徑
Cellulose Nitrate Membrane Circle, plain, 12 µm, 47 mm
10400012
100 Pieces
47mm
Cellulose Nitrate Membrane Circle, plain, 12 µm, 70 mm
10400014
100 Pieces
47mm

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