✦ LIBER ✦

Construction of a new multi-turn time-of-flight mass spectrometer

✍ Scribed by Toyoda, Michisato; Ishihara, Morio; Yamaguchi, Shin-ichi; Ito, Hiroyuki; Matsuo, Takekiyo; Roll, Reinhard; Rosenbauer, Helmut

Publisher: John Wiley and Sons
Year: 2000
Tongue: English
Weight: 310 KB
Volume: 35
Category: Article
ISSN: 1076-5174
DOI: 10.1002/(sici)1096-9888(200002)35:2<163::aid-jms924>3.0.co;2-g

No coin nor oath required. For personal study only.

✦ Synopsis

A new type of multi-turn time-of-flight mass spectrometer was constructed, consisting of four cylindrical electric sectors and 28 electric quadrupole lenses, the size of the vacuum chamber being 60 × 70 × 20 cm. It was demonstrated that the mass resolution can be increased according to the number of cycles of the ions through the ion optical system.

📜 SIMILAR VOLUMES

Ion optics for multi-turn time-of-flight

Ion optics for multi-turn time-of-flight mass spectrometers with variable mass resolution

✍ Matsuo, Takekiyo; Toyoda, Michisato; Sakurai, Toru; Ishihara, Morio 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 282 KB 👁 2 views

The ion optics of multi-turn time-of-Ñight (TOF) mass spectrometry was investigated. Two feasible systems using toroidal sector plus quadrupole lenses and cylindrical sectors plus quadrupole doublets were found. The combination of a linear TOF with a Ðgure-of-eight type multi-turn system is proposed

Mass-correlated Delayed Extraction in Li

✍ S.V. Kovtoun 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 323 KB 👁 2 views

Theoretical analysis and model calculations were directed to find a means of extending the Wiley-McLarens principles of velocity focusing to wide range mass spectra. Both the cases of time-profiled single-field and double-field operation modes were considered. High mass accuracy over about a 10-fold

Miniature time-of-flight mass spectromet

Miniature time-of-flight mass spectrometer using a flexible circuitboard reflector

✍ Timothy J. Cornish; Scott Ecelberger; Will Brinckerhoff 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 228 KB 👁 1 views

A quadrupole ion trap/time-of-flight mas

A quadrupole ion trap/time-of-flight mass spectrometer with a parabolic reflectron

✍ Doroshenko, Vladimir M.; Cotter, Robert J. 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 470 KB 👁 2 views

A matrix-assisted laser desorption/ionization-quadrupole ion trap/reÑectron time-of-Ñight (MALDI-QIT/reTOF) mass spectrometer design and its operation in both normal and tandem mass spectrometric modes are described. A parabolic reÑectron was found to be capable of providing mass resolution of 5000

Improving the sensitivity of the end-cap

Improving the sensitivity of the end-cap reflectron time-of-flight mass spectrometer

✍ Charles A. Fancher; Amina S. Woods; Robert J. Cotter 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 166 KB 👁 2 views

A miniaturized time-of-flight (TOF) mass spectrometer utilizes an end-cap reflectron to achieve high kinetic energy focusing and improved mass resolution. However, the coaxial geometry gives rise to considerable losses in sensitivity resulting from reflected ion trajectories close to the center. The

Exact mass determination of narrow elect

Exact mass determination of narrow electrophoretic peaks using an orthogonal acceleration time-of-flight mass spectrometer

✍ M. E. Palmer; M. R. Clench; L. W. Tetler; D. R. Little 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 109 KB 👁 2 views

High efficiency electrically driven separation techniques, such as capillary zone electrophoresis (CZE) and capillary electrochromatography (CEC), yield narrow peak widths of the order of a few seconds. Scanning instruments may have difficulty in obtaining sufficient data points across such narrow p