SKU: 59910771163

PALL 4929 Acrodisc Syringe Filter with wwPTFE Membrane - 0.2 µm, 25 mm (1000/pkg)

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Description

PALL 4929 Acrodisc Syringe Filter with wwPTFE Membrane - 0.2 µm, 25 mm (1000/pkg)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 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. Pall provides HPLC certification with these products, ensuring that analytical results will not be compromised by extractable filter materials. Pall membranes are tested for compatibility with common HPLC solvents including water, methanol, and acetonitrile, using established HPLC procedures. In addition, to verify low levels of UV-detectable extractables, samples of the syringe filters are evaluated prior to release. Standard 25 mm Acrodisc syringe filters are designed for the filtration of sample volumes up to 100 mL. They feature an effective filtration area of 2.8 cm2.
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SKU: 59910771163

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4.6 ★★★★★
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Bernie
Lexington, US
★★★★★ 2
Every cologne certainly lasts differently….. just be aware
Scent: Original Citrus + Eucalyptus
Smells very nice like Harry’s Shower jell but doesn’t last very long at all on me , hopefully others so definitely not worth the money as far as I’m concerned
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Reviewed in the United States on July 17, 2025
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Luis A. Estable
Fort Morgan, US
★★★★★ 5
A well-rhymed book of poems
Format: Paperback
Thomas Hardy is a superb poet, a master rhymer, one of the main features of his poetry. These poems here are well-written and a delight to read. It is quite amazing to think why his poetry was so ignored and for the most part did not get much attention in his lifetime after one finishes reading the book. It tells more about the ignorance of man than Hardy as a poet that in some ways is getting the praise that he so much deserves, finally. Numerous are the poems that show mastery of diction and subject matter. They are carefully crafted to make them a jewel of poetry. Read them for what they bring which is magnificent poetry seen in their lines.
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Reviewed in the United States on December 26, 2024
E
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EllisScottPollard
San Leandro, US
★★★★★ 5
A Great Novelist's Wonderfully Liberating Indulgences with Poetry
Format: Paperback
While a prolific novelist, Thomas Hardy is a first-rate poet whose verse seems to get lost between attempts at poet canonization among those between late-Victorianism and early Modernism. Perhaps this narrow way of looking at the history of poetry is why Hardy's legacy as a poet is often overlooked. He doesn't neatly fit in with categories like realism, symbolism, naturalism, aestheticism, modernism, etc., because he grapples with both major and minor themes addressed and techniques used by the big names of the numerous movements that were ending, beginning, or in their prime state at the turn of the century. It's very interesting how his poems shine a light on his expertly crafted novels (especially the more provincial narratives), but I get the impression that Hardy viewed his identity as prose and verse stylist as separate personal facets. Such a self-evaluation is almost unfair to him. While undoubtedly what we might call a formalist novelist in the vein of Flaubert--one with intense philosophical interests like Austen (and Dostoevsky for a non-English example)--the formalism and philosophical bend certainly appears in his poetry, and Hardy almost seems like a freer artist when you read his verse works. This great collection proves to be curiously wonderful and will appeal to poetry lovers, Hardy enthusiasts, students and scholars of the many different art movements of the late 19th and early 20th centuries, and those of readers with a deeply philosophical approach to reading. That said, he's wonderfully and surprisingly accessible to laypeople as well, though always provides a great challenge to his readers without pretension or esoteric persuasions (if that's a factor that you might find frustrating in poetry).
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Reviewed in the United States on August 28, 2016
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Laura Robinson
Louisville, US
★★★★★ 5
Beautiful
Format: Paperback, Format: Paperback
Beautiful book—arrived in great shape! And I absolutely adore Hardy’s poetry. Not sure why I can never find him on the poetry shelves of my bookstores, because he’s one of the greats. So far my favorite is “Her Death and After”. Sounds morose, but it’s actually quite beautiful. It will touch your heart—just what Thomas Hardy had a knack for. If you like classic poetry, please get this book. It’s great!
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Reviewed in the United States on January 2, 2024
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Eric F.
San Leandro, US
★★★★★ 4
Great book
Format: Paperback
Everything arrived on time and as advertised
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Reviewed in the United States on November 22, 2021

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