SKU: 71622794344

Whatman US203NPUGMF Mini-UniPrep Syringeless Filter, 0.45 um, GMF filtration med (100 pcs)

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Description

Whatman US203NPUGMF Mini-UniPrep Syringeless Filter, 0.45 um, GMF filtration med (100 pcs)Mini UniPrep Syringeless Filters provide a faster and easier way to remove Particulates from samples being prepared for High Performance Liquid Chromatography (HPLC) Ultra High Performance Liquid Chromatography (UHPLC) analysis. In fact, Mini UniPrep lets you prepare samples in one third the time required by other methods. Add up the time savings, plus the money saved from cutting multiple consumables out of the sample preparation process and you'll

Mini-UniPrep Syringeless Filters provide a faster and easier way to remove Particulates from samples being prepared for High Performance Liquid Chromatography (HPLC)/Ultra High Performance Liquid Chromatography (UHPLC) analysis. In fact, Mini-UniPrep lets you prepare samples in one-third the time required by other methods. Add up the time savings, plus the money saved from cutting multiple consumables out of the sample preparation process and you'll see huge benefits for your laboratory.Mini-UniPrep is a preassembled filtration device consisting of a .4 ml capacity chamber and a plunger. The plunger contains a filtration membrane at one end and a preattached cap/septum at the other. The plunger is pressed through the sample in the outer chamber and positive pressure forces the filtrate into the reservoir of the plunger. Air escapes through the vent hole until the locking ring is engaged, providing an air-tight seal. Within seconds the Mini-Uniprep can be placed into any approved autosampler for injection into your instrument. The device can be used either manually or with a compressor unit. The multi-compressor can process up to 6 samples at one time, further improving sample processing time and reducing the risk of hand stress. The Mini-UniPrep device is designed to fit into any autosampler accommodating 12 x 32 mm vials. alternatively, the septum can be pierced with a needle and the sample drawn off for manual injection into an analyzer.

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SKU: 71622794344

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4.5 ★★★★★
Based on 25 reviews
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Product Reviews
C
Verified Purchase
Clever Naming Scheme
Lexington, US
★★★★★ 5
Durable
Size: Small, Style: Ultra Duo Tug
Well, our dogs didn't end up playing tug with each other, but they love the toy anyway and it still looks pretty good after a month. That doesn't sound like much, but they both love to chew and destroy rubber and they're ridiculously good at it. They also really like chewing the strap between the two balls, which is still in surprisingly good condition. Most "indestructible" toys are toast within the hour. Well worth the money. Plus, the unpredictable bounce when thrown keeps the dogs busy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
L
Verified Purchase
LJ
Bozeman, US
★★★★★ 4
Good quality ball for large dog, easy to clean
Size: Large, Style: Ultra Tug
It’s challenging to review this because I bought it for my son’s dog, and it doesn’t interest him at all, even though he likes and plays with regular balls. The ball appears to be good quality, which is typical for this brand. He likes to play tug of war, so I thought the combination with a ball would be a hit. The strap looks durable, so time will tell if he develops an interest in playing with this at some point. The ball is hard rubber and fairly heavy, so it should hold up to an aggressive chewer. It doesn’t squeak or make any other noise. It bounces unpredictably and erratically because of the attached strap. Both the strap and ball are easy to clean with soap and water.
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Reviewed in the United States on December 30, 2025
B
Verified Purchase
Beth M
Louisville, US
★★★★★ 5
A must have if "ball is life"
Size: Large, Style: Ultra Tug, Size: Large, Style: Ultra Tug
If ball is life for your pup this is a great option! Our 70lb mutt is obsessed. We got her the large size for reference. She is not a chewer so we have zero issues with the attached leash/rope part. The ball is the same hard rubber of a typical Chuck-it ball. The rope makes tossing and grabbing the ball from your dog so much easier and cleaner. I also love this helps avoid any choking hazard with typical balls having the rope.
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Reviewed in the United States on April 21, 2026
T
Verified Purchase
Tammy
Battle Creek, US
★★★★★ 5
Best and most durable toy for our German shepherd
Size: Medium, Style: Ultra Tug, Size: Medium, Style: Ultra Tug
We have a German shepherd. This is our 2nd purchase. The first one was her first and favorite toy. We still have the first one. But the strap broke (after a year) bc we didn't realize she hid it under blanket, and she chewed it in half. But after a year of hard play, the strap was worn out. She still plays with her ball, and often carries it with her on her walks. It throws well and I love not having to pick up a slobbery ball. The ball is soft, durable, safe, and easy to play with.
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Reviewed in the United States on August 22, 2025
C
Verified Purchase
Cindy Hutchinson
Fort Morgan, US
★★★★★ 5
Need suggestions
Size: Large, Style: Ultra Tug
This was a great toy but my 9 month old puppy (65 lbs ). Chewed it up within 3 hours. Any suggestions? I am really trying to find a tugging toy that can with stand him. He is a significant chewer.
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Reviewed in the United States on May 8, 2026

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