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ULtrafiLtration separates molecules based on size and shape,

Ultrafiltration separates molecules on the basis of size and shape, An industrial-scale ultrafiltration system. Photo courtesy of Elga Ltd, UK

Ultrafiltration, UF in a batch cell

Ultrafiltration—concentration polarization and microgel. As dilute sol circulates over membrane, sol is concentrated at membrane surface, and particles diffuse back to dilute region. Microgel does not diffuse, remains at membrane.

Ultrafiltratton in a well-stirred vessel

Ultrafine fibers can be obtained by Sea Island separable fiber technology in Teijin .

Ultrafine grained microstructure of B-quartz solid-solution glass-ceramic. Black bar 1gm.

Ultrafine net of microbial cellulose the cross-section of MC membrane with multilayer architecture

Ultrafine ZHS coated on an inert filler.

Ultraflat, homogeneous BCB sample measured in tip-scan mode

Ultrahigh mass resolving power inductively coupled plasma mass spectrometer equipped with a 3-tesla superconducting magnet.

Ultrahigh mass resolving power mass spectrum of 58Fe from a glow discharge mass spectrometer equipped with a 7-tesla superconducting magnet.

Ultrahigh resolution FT-ICR mass spectra. Each transient was acquired for 1.02 sec and had 250 msec relaxation time. The 867 peak in .

Ultrahigh vacuum apparatus for studying single-crystal catalysts b ore and after operation at high pressure in catalytic reactor. Position 1

Ultrahigh vacuum apparatus for studying single-crystal catalysts before and after operation at high pressure in catalytic reactor. Position 1

Ultrahigh-resolution MALDI-FT-ICR mass spectrum of native enkephalin. The expanded m z views of the second and third isotopic peak show fully mass-resolved signals. Reproduced from Ref. with permission. American Chemical Society, 1997.

Ultrahigh-resolution of photoelectron spectra of Ba8Si46 measured at 5.4 K using an energy resolution of 2.4 meV. Copyright American Institute of Physics

Ultrahigh-vacuum apparatus for studying single-crystal catalysts before and after poisoning and or reactions at higher pressure . Position 1 is for AES or UPS, position 2 is for deposition of poisons, position 3 is for reaction in the catalytic reactor. Product analysis is by GC or GC MS.

Ultramarine blue color scale.

Ultramicio glass electrode according to Sanz 2, glass capillary 3, exchangeable polyethylene capillary tip 4, overflow 5, connection to vacuum pump 0, female cone for connection with a syringe 7, electrolyte solution 8, chlorinated silver spiral 9, shielded cable to compensator 10, filling hole for electrolyte solution 11 and 12, in- and outlet for water from thermostat 13, elastic, high-resistance packing,

Ultramicro colorimeter according to Sanz 4, filter 5, phototube 6, lever attached at 7 to plug 8 and kept in position by spring 11. On pressing down the lever 6, the solution 9 is removed by suction via tube 10.

Ultramicro instrument for Na and K estimation. Nanoliter specimen is placed on wire ,

Ultramicro manometric gasometer D, ball bearing for rotating screw without turning coupling E, machined screw tach diameter, 20 threads per inch, recessed and tapped at one end to receive machine screw F, vacuum stopcock G, ball and socket ground-glass joint.

Ultramicro pipets according to Sanz . A, sample pipet B, reagent pipet C, reagent pipet for corrosive liquids,

Ultramicro pipets, self-zeroing. A, constriction pipet to deliver from mark to mark .



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