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Brainstem auditory evoked potentials in children with neurodegenerative diseases (1986)

Chen, Y. J. ; Kurokawa, T. ; Mitsudome, A. ; [et al.]

Springer

European journal of pediatrics 145 (1986), S. 471-474

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ISSN: 1432-1076

Keywords: Neurodegenerative diseases ; Brainstem auditory evoked potentials ; Children

Source: Springer Online Journal Archives 1860-2000

Topics: Medicine

Notes: Abstract We assessed the usefulness of brainstem auditory evoked potentials (BAEPs) for differentiating types of degenerative diseases in children. The findings of BAEPs were abnormal in one out of two with polioencephalopathies and in seven of the eight with leukoencephalopathies, showing prolonged interpeak latencies of waves I–III, I–V or disappearance of wave components. On the other hand, normal responses were observed in four with corencephalopathies and one with spinocerebellopathy. The serial BAEPs in eight patients had deteriorated with progression of the clinical symptoms. These data on 16 children suggest that BAEPs are indeed a useful tool for monitoring pathophysiologic processes of neurodegenerative diseases.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF02429045

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Microwave-induced plasma emission spectrophotometer combined with a photodiode array monitor for capillary column gas chromatography (1986)

Takigawa, Y. ; Hanai, T. ; Hubert, J.

Weinheim : Wiley-Blackwell

Journal of High Resolution Chromatography 9 (1986), S. 698-702

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ISSN: 0935-6304

Keywords: Capillary column gas chromatography ; Microwave-induced plasma emission spectrophotometric detector ; Photodiode array spectrophotometer ; Element-specific detector ; Chemistry ; Analytical Chemistry and Spectroscopy

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: A microwave-induced plasma emission spectrophotometric detector (MIPD) was used as an element-specific detector for capillary column gas chromatography. The atmospheric pressure microwave helium plasma generated with an original device called a SURFATRON was used as an atomization and excitation source. Combining a photodiode array spectrophotometer with the above system made the emission spectrophotometric detector very powerful. A wide range of spectra could be instantly monitored without any mechanical device.However, the spectrum of atmospheric helium emission plasma was complicated by the presence of air around the plasma discharge. An on-line background correction scheme was developed to handle such complicated spectra.

Additional Material: 5 Ill.