SKU: 16521297790

PALL ODPTFE04C35 Nanosep MF Centrifugal Devices with wwPTFE Membrane 0.45 µm, clear (500/pkg)

Sale price$379.54 Regular price$421.71
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Description

PALL ODPTFE04C35 Nanosep MF Centrifugal Devices with wwPTFE Membrane 0.45 µm, clear (500/pkg)Nanosep centrifugal devices are formed out of two components, a filtrate receiver tube and a sample reservoir containing the membrane. These component parts are constructed from low protein binding polypropylene that also offers chemical compatibility for aggressive solvents. Instead of using O rings or adhesives that could add extractables or bind precious biomolecules the product is constructed using an ultrasonic welding technique. These

Nanosep centrifugal devices are formed out of two components, a filtrate receiver tube and a sample reservoir containing the membrane. These component parts are constructed from low protein binding polypropylene that also offers chemical compatibility for aggressive solvents. Instead of using O-rings or adhesives that could add extractables or bind precious biomolecules the product is constructed using an ultrasonic welding technique.

These centrifugal devices are very simple to use. The sample to be processed is pipetted into the upper reservoir of the device. The device is placed into the appropriate centrifuge (taking care that the rotor is balanced) and spun. Filtrate can be recovered by removing the lower reservoir of the device and using a pipette or pipette tip to remove the liquid. Nanosep centrifugal devices can be used with sample volumes of up to 500 µL, and fit in standard centrifuge rotors that accept 1.5 mL tubes.

Nanosep centrifugal devices with wwPTFE (water wettable PTFE) membranes are available with 0.2 and 0.45 μm pore sizes can be used in rapid microfiltration applications. They are ideal for use in analytical sample preparation or applications that require the use of a universally solvent compatible membrane.

Nanosep centrifugal devices with wwPTFE are certified to be low in UV extractables making them ideal for HPLC or UHPLC sample preparation. They feature low hold-up volumes (

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SKU: 16521297790

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Kindle Customer
Lowell, US
★★★★★ 5
Indestructable toy
Size: Medium/Large, Product Packaging: Standard Packaging
My dogs loves it and cannot tear it up no matter how hard she tries and squeaker is secure and excites her when she manages to crush the center ball. Loves to chase it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 7, 2026
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Amazon Customer
Natrona Heights, US
★★★★★ 4
Not Boerboel proof
I have a terrible time finding toys for my 10 month old Boerboel. Either she ignores it or tears it up immediately. She likes this toy (jumbo size) and actually chewed on it for 20 min. Bad side is she chewed a hole. It lasted longer than any of the other fairly chewy toys I've tried. She doesn't like the hard chews.
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Reviewed in the United States on December 18, 2024
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Verified Purchase
Peter Jacobus
New York, US
★★★★★ 5
Favorite Toy
Size: Medium/Large, Product Packaging: Standard Packaging
My dog is a 3.5 yr old mix and this toy has been her favorite toy by far for three years. She likes it as a squeak toy, loves it as a tug toy and can't live without it as fetch toy. I roll it on its edge outside and she chases it - sometimes it take cool bounces or swerves and sometimes its just rolls straight and fast and whatever it does she can't get enough of it. She demands we play fetch with it at least three times a day. She's not a great releaser of fetch toys so there's plenty of tugging play involved too. We've had three of these over three years, but she's 75 pounds of muscle and it gets a work out every day so it's a really tough toy. All dogs are different, so I don't know what your dog will think, but it's been a fantastic toy for our girl.
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Reviewed in the United States on January 21, 2026
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Nick Shaw
Port Orchard, US
★★★★★ 1
So Bad
Size: Medium/Large, Product Packaging: Standard Packaging, Size: Medium/Large, Product Packaging: Standard Packaging
Had high hopes for this toy as Kong is fantastic with aggressive chewers as or Lulu is. This toy didn't last 30 minutes before she was able to tear it apart. The rubber and plastic are not of the same quality on nearly all there other toys she has. Have found better toys for half the cost. Kong needs to do better.
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Reviewed in the United States on January 30, 2026
K
Verified Purchase
Kelly Cole
Phoenix, US
★★★★★ 5
Best toys for active dogs
Size: Medium/Large, Product Packaging: Standard Packaging, Size: Medium/Large, Product Packaging: Standard Packaging
My dogs love these Kong toys. I have border collies. They are active and these toys go on ever walk, out to the pasture, they carry them everywhere! We like this toy as well As the Kong ball shown in the picture. Indestructible!
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Reviewed in the United States on January 13, 2026

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