scholarly journals Fraction Collector

2020 ◽  
Author(s):  
Keyword(s):  
Fraction Collector

Automatic Fraction Collector for Chromatographic Preparations

1953 ◽  
Vol 25 (9) ◽  
pp. 1425-1426 ◽  
Author(s):  
J. L. Hickson ◽  
R. L. Whistler
Keyword(s):  
Fraction Collector

scholarly journals micrIO: An Open-Source Autosampler and Fraction Collector for Automated Microfluidic Input-Output

2019 ◽  
Author(s):  
Scott A. Longwell ◽  
Polly M. Fordyce
Keyword(s):  
Open Source ◽  
Positive Pressure ◽  
Cross Contamination ◽  
Wide Spread ◽  
Fraction Collector ◽  
Input And Output ◽  
Wide Range ◽  
Molecular Separations ◽  
Multiwell Plates

Microfluidic devices are an empowering technology for many labs, enabling a wide range of applications spanning high-throughput encapsulation, molecular separations, and long-term cell culture. In many cases, however, their utility is limited by a ‘world-to-chip’ barrier that makes it difficult to serially interface samples with these devices. As a result, many researchers are forced to rely on low-throughput, manual approaches for managing device input and output (IO) of samples, reagents, and effluent. Here, we present a hardware-software platform for automated microfluidic IO (micrIO). The platform, which is uniquely compatible with positive-pressure microfluidics, comprises an ‘AutoSipper’ for input and a Fraction Collector for output. To facilitate wide-spread adoption, both are open-source builds constructed from components that are readily purchased online or fabricated from included design files. The software control library, written in Python, allows the platform to be integrated with existing experimental setups and to coordinate IO with other functions such as valve actuation and assay imaging. We demonstrate these capabilities by coupling both the AutoSipper and Fraction Collector to a microfluidic device that produces beads with distinct spectral codes, and an analysis of the collected bead fractions establishes the ability of the platform to draw from and output to specific wells of multiwell plates with no detectable cross-contamination between samples.

scholarly journals Fractionation of Volatile Constituents fromCurcumaRhizome by Preparative Gas Chromatography

2011 ◽  
Vol 2011 ◽  
pp. 1-6 ◽  
Author(s):  
F. Q. Yang ◽  
H. K. Wang ◽  
H. Chen ◽  
J. D. Chen ◽  
Z. N. Xia
Keyword(s):  
Gas Chromatography ◽  
Methanol Extract ◽  
Volatile Components ◽  
Gas Flows ◽  
Ionization Detector ◽  
Flame Ionization ◽  
Fraction Collector ◽  
Preparative Gas Chromatography ◽  
Steel Column ◽  
Stainless Steel Column

A preparative gas chromatography (pGC) method was developed for the separation of volatile components from the methanol extract ofCurcumarhizome. The compounds were separated on a stainless steel column packed with 10% OV-101 (3 m × 6 mm, i.d.), and then, the effluent was split into two gas flows. One percent of the effluent passed to the flame ionization detector (FID) for detection and the remaining 99% were directed to the fraction collector. Five volatile compounds were collected from the methanol extract ofCurcumarhizome (5 g/mL) after 83 single injections (20 uL) with the yield of 5.1–46.2 mg. Furthermore, the structures of the obtained compounds were identified asβ-elemene, curzerene, curzerenone, curcumenol, and curcumenone by MS and NMR spectra, respectively.

Self-Contained Clepsydra-Controlled Fraction Collector

1958 ◽  
Vol 30 (10) ◽  
pp. 1710-1711 ◽  
Author(s):  
W J. Wingo
Keyword(s):  
Fraction Collector

scholarly journals Fraction Collector

Science ◽  
1975 ◽  
Vol 189 (4197) ◽  
pp. 155-155
Keyword(s):  
Fraction Collector
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