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Description
PALL AP-4914 Acrodisc One Syringe Filters with wwPTFE membrane - GxF/0.2 µm AutoPack tubes (25/pkg, 200/cs)Syringe filters are used in analytical chemistry applications to remove particulate contamination prior to analysis. Filtering a sample prior to sample injection into analytical instrumentation will help protect sensitive parts of the instrument from particulate build up and reduce system downtime. Sample filtration using syringe filters containing 0. 45 m (HPLC) or 0. 2 m (UHPLC) pore size membranes will also extend the life of chromatography columns
Syringe filters are used in analytical chemistry applications to remove particulate contamination prior to analysis. Filtering a sample prior to sample injection into analytical instrumentation will help protect sensitive parts of the instrument from particulate build-up and reduce system downtime. Sample filtration using syringe filters containing 0.45 μm (HPLC) or 0.2 μm (UHPLC) pore size membranes will also extend the life of chromatography columns by preventing particulate from blocking the flow path between the column packing. Pall’s Acrodisc One PSF Syringe Filters with wwPTFE membranes have been designed to protect analytical instrumentation and improve the reliability of results. wwPTFE membrane devices are chemically compatible with a wide variety of common solvents and are suitable for use in both aqueous and organic applications. These syringe filters are constructed with solvent compatible polypropylene material. The polypropylene plastic provides the syringe filter with exceptional strength, it is the highest grade of plastic with minimal additives and passes United States Pharmacopeia (USP) Biological Reactivity Test, In Vivo <88> plastics testing. Both the wwPTFE membrane and polypropylene housing are extremely low in levels of potential extractables that can lead to chromatographic interference. The devices are low in protein and API binding which make them ideal for drug studies, such as dissolution testing. The GxF/wwPTFE membrane configuration features a a GxF multi-layer glass fiber prefilter, providing two to four times the throughput of standard prefilter devices. The multi-layer prefilter captures particulate rated from > 40 to 1 μm.Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
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4.6 ★★★★★
Based on 1544 reviews
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Product Reviews
★★★★★ 5
Great book!
Format: Hardcover
My kids love this book. It's not a super long book but long enough to give a fun storyline. Puts a fun spin on cupid.
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Reviewed in the United States on February 24, 2026
★★★★★ 5
Need this for your library
Format: Hardcover
Funny book. My class loves it.
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Reviewed in the United States on January 29, 2026
★★★★★ 5
Kids love the newest “Worst” tale-
Format: Hardcover
Kids will love this next book in The Worst series. Awesome, fun, colorful illustrations in this tale with Gilbert the Goblin trying to escape cupids and valentines. Instead of candy for Valentine’s Day give the gift of this book. My students love when Alex Willan has a new book out and are loving this one.
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Reviewed in the United States on January 17, 2026
★★★★★ 4
Plenty of fun for Gilbert fans!
Format: Hardcover
As in previous books in the series, Gilbert the Goblin complains about the problems he sees with Valentine's Day, what he calls 'mushy malarkey'. Young readers who don't care for the holiday will find much to relate to in the book. Although, Gilbert's complaints seem a tad trifling. Coconut chocolates are 'Blech'. He seems to have a special issue with the cupid's 'perfect', 'beautiful', and 'luxurious' hair. When Gilbert faces off with a group of cupids, he just barely manages to escape their love arrows, or so he thinks until he backs into a cactus in his own yard and believes he has been pricked by one such love arrow. He then becomes a goblin full of love. He loves his spells, his potions, even himself, but not coconut chocolates. He even welcomes his friends over to celebrate before bidding his pet sock slugs a fond goodnight. Good thing the love spell wears off. This funny book follows the pattern of the previous five books, but the addition of adorable cupids as well as Gilbert's beloved cactuses and pet sock slugs provides plenty of freshness as Gilbert once again (reluctantly) joins in the festivities. Plenty of fun for young fans of the series.
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Reviewed in the United States on February 10, 2026
★★★★★ 5
LOVE this book! ❤️
Format: Hardcover
I am a kindergarten teacher and my students LOVE this series! Valentines are the Worst is a new favorite! The illustrations are amazing as always and the story is funny and sweet, perfect for Valentine's Day!
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Reviewed in the United States on January 17, 2026