Lab+Life Scientist July 2015

Page 52

There’s only one Amicon® filter. Don’t be fooled.

• Centrifugal ultrafilters are posing as high-quality Amicon® Ultra filters, but are rather thinly disguised. • These filters may exhibit imprecise analyte separation and poor device integrity. • Victims report poor protein yield and difficulties with downstream analysis.

Avg. α-Chymotrypsinogen A Recovery (%)

C AUTION:

10 kDa Amicon® Ultra 4 Filter vs. 10 kDa Competitor V Filter 100%

3%

80%

53%

60% 40% 20% 0%

46%

87% Amicon® Ultra 4 10 kDa

Competitor B 10 kDa Retenate

Don’t be fooled – Merck Millipore’s history of membrane technology and filter device engineering is unmatched.

Merck Millipore is a business of

Merck Millipore, the M logo and Amicon are registered trademarks of Merck KGaA, Darmstadt, Germany.

Filtrate

Competitor B 10 kDa filter has <50% recovery of 25 kDa protein.

Contact Merck Millipore: Australia: 1800 335 571 New Zealand: 0800 463 725