Now showing items 41-50 of 100
An ion trap storage/time‐of‐flight mass spectrometer
(The American Institute of Physics, 1992-10)
An ion trap/time‐of‐flight (TOF) mass spectrometer combination has been developed in order to combine the storage capabilities of an ion trap with the speed and resolution of a time‐of‐flight device. The ion trap is an rf ...
Surgery for benign insulinoma: An international review
(Springer-Verlag; Société Internationale de Chirurgie, 1990-05)
In a multiinstitutional review, data on 396 patients with benign solitary or multiple insulinomas operated on in 15 centers were collected. In these 396 patients, 419 laparotomies (375 primary procedures and 44 reoperations) ...
Successful management of a chylothorax in infancy using a pleurectomy
(Springer-Verlag, 1996-02)
The management of chylothorax is described in three infants. Because none of them had had a direct injury to the thoracic duct, it was suspected that the chylothoraces had a significant chance of recurrence after simple ...
Detection of Oligonucleotides by External Injection into an Ion Trap Storage/Reflectron Time-of-flight Device
(John Wiley & Sons, Ltd., 1997-08-30)
The detection of oligonucleotides has been studied using external injection of matrix-assisted laser desorption/ionization (MALDI) produced ions into a quadrupole ion trap storage device. The ions stored in the trap are ...
Direct chemical analysis of UV laser ablation products of organic polymers by using selective ion monitoring mode in gas chromatography/mass spectrometry
(Elsevier, 1994-02)
Trace quantitites of laser ablated organic polymers were analyzed by using commercial capillary column gas chromatography / mass spectrometry; the instrument was modified so that the laser ablation products could be ...
The design and performance of an ion trap storage--reflectron time-of-flight mass spectrometer
(Elsevier, 1994-02-24)
The design and performance of an ion trap storage--reflectron time-of-flight mass spectrometer (IT--RETOF MS) combination have been explored for detection of ions generated from both internal and external ionization sources. ...
Identification of intestinal-type Barrett's metaplasia by using the intestine-specific protein villin and esophageal brush cytology
(John Wiley & Sons, Inc., 1999-02)
Villin is an actin-binding cytoskeletal protein required for brush-border formation in the normal small intestinal and renal proximal tubule epithelium. Villin is a marker of cell differentiation in small intestinal and ...
Dendritic outgrowth of myenteric plexus neurons in primary culture
(Elsevier, 1992-04)
Myenteric plexus neurons derived from neonatal guinea pigs, when exposed to serum, demonstrated a characteristic pattern of growth, including a proliferating outgrowth zone of glial cells, peripheral extension of dendritic ...
The design of an atmospheric pressure ionization/time‐of‐flight mass spectrometer using a beam deflection method
(The American Institute of Physics, 1992-01)
A novel time‐of‐flight (TOF) mass spectrometer configuration has been designed which can be interfaced to a continuous ion beam source produced by atmospheric pressure ionization. The TOF device uses a beam deflection ...