Thursday, July 12, 2012
Whatman 1821-025 Glass Microfiber Binder Free Filter, 1 Micron, 12 s/100mL Flow Rate, Grade GF/B, 2.5cm Diameter (Pack of 100)
!9# Whatman 1821-025 Glass Microfiber Binder Free Filter, 1 Micron, 12 s/100mL Flow Rate, Grade GF/B, 2.5cm Diameter (Pack of 100)
These GF/B glass microfiber filters are three times thicker than Whatman GF/A with higher wet strength and significantly increased loading capacity. Combines fine particle retention with good flow rate. Particularly useful where liquid clarification or solids quantification is required for heavily loaded fine particulate suspensions. Can be used as a finely retentive membrane prefilter. Used in LSC techniques where high loading capacity is required. Retention: 1.0µm. Diameter: 2.5cm. 100/Pack. Whatman #: 1821-025.
- Diameter: 2.5cm
- Grade GF/B; retention: 1.0µm
- Three times thicker than Whatman grade GF/A, higher wet strength; significantly increased loading capacity
- Combines fine particle retention with good flow rate; particularly useful where liquid clarification or solids quantification is required for heavily loaded fine particulate suspensions
- Can be used as a finely retentive membrane prefilter; used in LSC techniques where high loading capacity is required
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Monday, July 9, 2012
Whatman 1827-150 Glass Microfiber Binder Free Filter, 1.5 Micron, 3.7 s/100mL Flow Rate, Grade 934-AH, 15.0cm Diameter (Pack of 100)
!9# Whatman 1827-150 Glass Microfiber Binder Free Filter, 1.5 Micron, 3.7 s/100mL Flow Rate, Grade 934-AH, 15.0cm Diameter (Pack of 100)
The fine particle retention of this popular grade is superior for its high retention efficiency at high flow rates and its high loading capacity. This filter is a smooth surface, high retention borosilicate glass microfibre which withstands temperatures over 500°C. Specified in Standard Methods 2540D for determining total suspended solids in water, removal of turbidity and filtration of bacterial cultures. Grade 934-AH is used for a wide range of laboratory applications. It is recommended for water pollution monitoring, cell harvesting, liquid scintillation counting and air pollution monitoring. Retention: 1.5µm. Diameter: 15.0cm. 100/Pack. Whatman #: 1827-150.
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Saturday, July 7, 2012
Whatman 1825-025 Glass Microfiber Binder Free Filter, 0.7 Micron, 19 s/100mL Flow Rate, Grade GF/F, 2.5cm Diameter (Pack of 100)
!9# Whatman 1825-025 Glass Microfiber Binder Free Filter, 0.7 Micron, 19 s/100mL Flow Rate, Grade GF/F, 2.5cm Diameter (Pack of 100)
The Whatman high efficiency GF/F filter will retain fine particles down to 0.7µm. Unlike membrane filters with a comparable retention value, it has a very rapid flow rate with a high loading capacity. These Whatman GF/F filters are suitable for critical applications including enumeration of Salmonella and Pseudomonas Aeroginosa, clarification of protein solutions and filtering samples and solvents prior to HPLC. Because of the tight specification of 0.6µm-0.8µm particle retention and pure borosilicate glass structure, GF/F is the material upon which the EPA Method TCLP 1311 for Toxicity Characteristic Leaching Procedure was developed. It remains today the filter of choice. Recommended for DNA binding and purification. Very effective in filtering finely precipitated proteins, GF/F can be used in conjunction with GF/D as a prefilter for the successful clarification of difficult biochemical solutions and fluids, and nucleic acids. Retention: 0.7µm. Diameter: 2.5cm. 100/Pack. Whatman #: 1825-025.
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Thursday, July 5, 2012
Whatman 1827-024 Glass Microfiber Binder Free Filter, 1.5 Micron, 3.7 s/100mL Flow Rate, Grade 934-AH, 2.4cm Diameter (Pack of 100)
!9#Whatman 1827-024 Glass Microfiber Binder Free Filter, 1.5 Micron, 3.7 s/100mL Flow Rate, Grade 934-AH, 2.4cm Diameter (Pack of 100)
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Post Date : Jul 05, 2012 09:51:08
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The fine particle retention of this popular grade is superior for its high retention efficiency at high flow rates and its high loading capacity. This filter is a smooth surface, high retention borosilicate glass microfibre which withstands temperatures over 500°C. Specified in Standard Methods 2540D for determining total suspended solids in water, removal of turbidity and filtration of bacterial cultures. Grade 934-AH is used for a wide range of laboratory applications. It is recommended for water pollution monitoring, cell harvesting, liquid scintillation counting and air pollution monitoring. Retention: 1.5µm. Diameter: 2.4cm. 100/Pack. Whatman #: 1827-024.
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Wednesday, April 4, 2012
Whatman 1823-142 Glass Microfiber Binder Free Filter, 2.7 Micron, 2.2 s/100mL Flow Rate, Grade GF/D, 14.2cm Diameter (Pack of 25)
!9# Whatman 1823-142 Glass Microfiber Binder Free Filter, 2.7 Micron, 2.2 s/100mL Flow Rate, Grade GF/D, 14.2cm Diameter (Pack of 25)
The Whatman GF/D glass microfiber filter is considerably faster in flow rate and overall filtration speed than Cellulose filter papers of similar particle retention. The filter is thick and consequently exhibits a high loading capacity. Designed as a membrane prefilter and available in sizes to fit most holders. GF/D will provide good protection for finely retentive membranes. Can be used in combination with GF/B to provide very efficient graded prefilter protection for membranes. Retention: 2.7µm. Diameter: 14.2cm. 25/Pack. Whatman #: 1823-142.
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