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Ships within 48 hours · Estimated delivery Jul 12 - Jul 17
For Your Every Summer RSVP, with Code: SUMMER15
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.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.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.0 ★★★★★
Based on 274 reviews
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Product Reviews
★★★★★ 5
Holy Grail of Baby Socks
Love, love, love these socks. As anyone who has ever been around a baby knows, their socks are always falling off! These are the only ones I've found to stay on so they are well worth the price as you aren't constantly losing them and having to buy more. I've already bought 2 sets and will probably buy one more and more again when he sizes up. Right now my son is 2 months old, wearing 6 month clothes, and they still fit him well.
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Reviewed in the United States on December 16, 2016
★★★★★ 3
Fits a bit short and narrow. Received one sock that had a hole.
Great socks for babies with narrow feet. However, the length is on the small side. I wish that I would have ordered the larger size (my baby is 8 months old and in the 86th % wearing the 6-12 month socks).
One sock in the set has a hole at the bottom of the foot. Sadly I washed them before putting them on my baby so now it's too late to return them. I'd suggest carefully examining each sock before washing/using them to look for defects.
The fabric is far better than the socks sold at Sprawl-Mart and they stay on better as well.
Final verdict - I won't be ordering these online again since it is difficult for me to do returns even if I had noticed the defect before washing them. They are a very good design so I will look for some in stores to purchase.
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Reviewed in the United States on March 2, 2016
★★★★★ 5
Good quality, affordable pricing.
Great socks. Just right thickness. Light and breathable. My five yr old loves them for summer. Also great when shoes are getting snug with thicker socks.
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Reviewed in the United States on October 28, 2022
★★★★★ 5
Great quality
My 4 year old grandson loved these!
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Reviewed in the United States on June 3, 2023
★★★★★ 5
So cute and cozy!
These are adorable boots for a new walker. My 12 month old walks with ease without slipping. The insides are fully lined with the soft fur you see at the top, so warm.
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Reviewed in the United States on November 30, 2021