SKU: 94097448763

PALL AP-4522 Acrodisc PSF Syringe Filters with Nylon Membrane - 0.2 µm (1000/pkg)

Sale price$1153.11 Regular price$1281.23
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Description

PALL AP-4522 Acrodisc PSF Syringe Filters with Nylon Membrane - 0.2 µm (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.

Nylon syringe filters can be used for both aqueous and solvent-based sample filtration applications and show excellent chemical compatibility with esters, bases and alcohols. However, it should be noted that nylon syringe filters are not recommended for sample fluids which are strongly acidic.

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.

Acrodisc PSF Syringe Filters feature a large effective filtration area (3.9 cm2) for increased sample throughput, ideal for sample volumes of ≤ 150 mL. Pall Acrodisc PSF Syringe Filters are designed to be fully compatible for use with automated robotic handling systems offering reliable and worry-free operation.

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SKU: 94097448763

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4.3 ★★★★★
Based on 78 reviews
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Jennifer R.
Bozeman, US
★★★★★ 5
The Perfect First Shoe! Worth the Price.
My little one was just starting the stand/learning to walk and we wanted something to protect his feet while we were out of the house. Since babies/toddlers grow out of their shoes so quickly, I tried desperately to find shoes that didn't cost more than $20. However, I tried about 6 different "cheaper" shoes, all different brands, and nothing would stay on my babies feet. I finally broke down and bought these shoes and they are perfect. I ended up wasting more money trying not to spend too much money on shoes that would be too small after a couple months. It would have been cheaper for me to just buy these shoes to start. Fit wise they are great. Super easy to put on. They stay on! I appreciate the rubber portion on the sole because it gave my little one more traction when he was learning to walk. They are light way and the sole is very flexible which is important for the proper development of their feet. I just wish they made larger sizes because I am going to have to start the hunt all over for the perfect shoe once he grows out of the biggest size that Robeez sells. Save yourself time and avoid wasting money on shoes that don't stay on. Just buy these shoes!
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Reviewed in the United States on November 28, 2023
E
Verified Purchase
Elle
Carnegie, US
★★★★★ 5
Cute and STABLE
Size: 12-18 Months Toddler, Color: Navy Leather
This brand was recommended by a family member as being good for kids who are learning how to walk, and I definitely agree. My son had a different pair of shoes from Carter’s that fit well and looked cute, but the soles were a little too slick for an early walker despite having little rubberized dots on them. I like that these have more realistic soles, with real traction and support, but still allow the kid’s foot to flex. My son is very comfortable in them and was immediately noticeably more stable while standing and practicing walking in them. Bonus- they are super cute and this design is neutral enough to go with plenty of his clothes. My only small complaint is a little thread coming loose on one shoe, but so far it isn’t causing any issues/doesn’t seem to be unraveling anything structural. Highly recommend overall!
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Reviewed in the United States on May 13, 2022
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Verified Purchase
ChrissyD
Houston, US
★★★★★ 4
Great shoes!
Size: 18-24 Months Toddler, Color: Grey Leather
Love these shoes, only shoes I put my 15 month old in. However, they do run small. I bought 12-18 month size and my boy out grew them before 12 months old, I had to repurchase 18-24m to fit perfectly.
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Reviewed in the United States on November 8, 2025
E
Verified Purchase
Emily
Pawtucket, US
★★★★★ 5
The BEST toddler shoe!!
Size: 18-24 Months Toddler, Color: Brooks Grey Leather
These shoes are 100% worth every penny. They are super easy to get on and off due to the fact that the tongue pulls back fully and they are flexible yet sturdy. They are excellent quality and have maintained great condition with my busy toddler at the park. The wide toe box provides great comfort for my little one’s wide feet. Buy the shoes!!!
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Reviewed in the United States on September 4, 2025
J
Verified Purchase
Jacqueline
Lowell, US
★★★★★ 1
Bummed they fell apart they are super cute
Size: 12-18 Months Toddler, Color: Raiden Camel Suede, Size: 12-18 Months Toddler, Color: Raiden Camel Suede
I’m so bummed because these shoes are so cute and highly rated but mine fell apart after only a few wears. They say light outdoor activities and I would assume they mean walking up and down the block in the neighborhood. My son is only 15 months old and doesn’t walk fast or far at all so it’s really disappointing they fell apart.
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Reviewed in the United States on February 1, 2026

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