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Engineered Biology - Sensors for Microbiology
Dunham Lab Chemostat Manual
Masterflex L/S precision variable speed drive
EW-07520-50
each, $850
Masterflex Standard pump head for L/S 13 tubing
EW-07013-20
each, $112
Masterflex PharMed BPT Tubing, L/S #13
EW-06508-13
25'', $67
Does that come with a built-in television?
Engineered Biology - Sensors for Microbiology
Dunham Lab Chemostat 'Ministat' Video
Aaron W. Miller, Corrie Befort, Emily O. Kerr, Maitreya J. Dunham
Department of Genome Sciences, University of Washington
"design and operation of a relatively simple, low cost array of miniature chemostats .. in determination of physiology and in evolution experiments with yeast"
JOVE (VIDEO): Design and Use of Multiplexed Chemostat Arrays
Miller, A. W., Befort, C., Kerr, E. O., Dunham, M. J. Design and Use of Multiplexed Chemostat Arrays. J. Vis. Exp. (72), e50262, doi:10.3791/50262 (2013).
Engineered Biology - Sensors for Microbiology
Portable LED-array VIS–NIR spectrophotometer/nephelometer
"A portable instrument with a high-speed multiple-wavelength LED array source, and simultaneous detectors for absorbance and 90° nephelometry, was tested from 420 to 950 nm. Absorbance values and simultaneous 90°-scatter intensities at six different wavelengths can be determined and stored every 0.02 s. An advantage of this LED instrument is that its sensitivity is equal to or better than many research-grade spectrophotometers. Also, unlike diode array spectrometers, which emit white light through samples, the LED instrument emits monochromatic light through samples, enabling us to obtain turbidity, turbidity ratio, and particle size information in addition to the absorption spectrum. Field applications can range from simple turbidity and multiple-wavelength absorbance measurements to kinetic experiments with temporal acquisition of multiple-wavelength absorbance and simultaneous turbidity data. Rugged, laptop compatible, portable, and inexpensive, the LED instrument is useful for discrete or on-line VIS–NIR absorption analysis and turbidity, or turbidity ratio, analysis. © 1998 John Wiley & Sons, Inc. Field Analyt Chem Technol 2: 21–28, 1998"
Engineered Biology - Sensors for Microbiology
Mercury
WHO Guidance for Identifying Populations at Risk from Mercury Exposure August 2008
"Mercury is also relatively volatile and, therefore, easily lost during sample preparation and analysis. ... Most of the methods available to determine mercury levels in blood, urine, tissues, and hair use atomic absorption spectrometry (AAS), atomic emission spectrometry (AES), atomic fluorescence spectrometry (AFS), neutron activation analysis (NAA), mass spectrometry (MS), or anodic stripping voltametry (ASV). Cold vapour AAS (or CVAAS) is the most widely used."