Unfortunately, there is no direct correlation between linear pore size measurements and nominal pore ratings based on retention of globular proteins (MWCO). However, several publications are available describing the separation of QDs by size based on the membrane MWCO. Please see the link below to review an example of one such publication:
https://pmc.ncbi.nlm.nih.gov/articles/PMC8271461/
D9652
Membrana de celulose para tubos de diálise
avg. flat width 33 mm (1.3 in.)
Sinônimo(s):
Membrana de celulose, Membrana de diálise, Tubos de diálise de celulose
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100 FT
R$ 1.624,00
R$ 1.624,00
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100 FT
R$ 1.624,00
About This Item
Código UNSPSC:
41123100
NACRES:
NB.22
R$ 1.624,00
Check Cart for Availability
Produtos recomendados
diâmetro médio
21 mm , when full
largura média plana
33 mm (1.3 in.)
capacidade
~110 mL/ft
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Categorias relacionadas
Descrição geral
Limite de peso molecular típico = 14.000.
Embalagem
Fornecido em rolos, seco
Qualidade
Pode conter compostos de glicerina e enxofre em quantidades acima de níveis de traço.
Nota de preparo
A remoção do glicerol incluído como um umectante pode ser realizada lavando a tubulação em água corrente por 3-4 horas. A remoção de compostos de enxofre pode ser realizada tratando a tubulação com uma solução 0,3% (p/v) de sulfeto de sódio a 80 °C por 1 minuto. Lave com água quente (60 °C) por 2 minutos, seguido pela acidificação com uma solução 0,2% (v/v) de ácido sulfúrico e enxágue com água quente para remover o ácido. A tubulação reterá a maior parte das proteínas com peso molecular de 12.000 ou maior.
Código de classe de armazenamento
13 - Non Combustible Solids
Classe de risco de água (WGK)
WGK 3
Ponto de fulgor (°F)
Not applicable
Ponto de fulgor (°C)
Not applicable
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Certificados de análise (COA)
Lot/Batch Number
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Conteúdo relacionado
Dialysis Tubing
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What is the molecular weight cut off for the Dialysis tubing cellulose membrane avg. flat width 33 mm (1.3 in.) with product number D9652? Is this suitable for purification of Quantum Dots which have size range from 2-10nm.
1 answer-
Helpful?
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Which organic solvents can be used with these membranes?
1 answer-
Regenerated cellulose membranes are typically compatible with acids and alcohols. Organic solvent compatibility varies from compound to compound. However, the solvent concentration, temperature, and exposure time are factors to be considered. Please see the table below to review the general membrane compatibility with various solvents.
Helpful?
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how do I prepare the tubings before usage?
1 answer-
Instructions have been provided in the 'Preparation Note' in the 'DESCRIPTION' section.
-Wash the tubing in running water for 3-4 hours to remove glycerol included as a humectant.
-Treat the tubing with a 0.3% (w/v) solution of sodium sulfide at 80°C for 1 minute to remove sulfur compounds.
-Wash with hot water (60°C) for 2 minutes, followed by acidification with a 0.2% (v/v) solution of sulfuric acid, then rinse with hot water to remove the acid.
This tubing will retain most proteins of molecular weight 12,000 or greater.Helpful?
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