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Real-time detection of 13CH4 in ambient air by use of mid-infrared cavity leak-out spectroscopy.

Kleine, D; Dahnke, H; Urban, W; Hering, P; Mürtz, M.

Opt Lett ; 25(21): 1606-8, 2000 Nov 01.

Article in English | MEDLINE | ID: mdl-18066291

ABSTRACT

We report on spectroscopic real-time detection of (13)CH(4) in ambient air. Our measurements were carried out by means of cavity leak-out absorption spectroscopy employing a tunable cw laser in the mid-infrared spectral region near lambda = 3 microm. A CO laser in combination with tunable microwave sideband generation was used as the light source. Using a 50-cm-long ringdown cell with R = 99.98% mirrors, we achieved a detection limit of 290 parts in 10(12) (ppt) (13)CH(4) in ambient air (integration time, 100 s). The corresponding noise-equivalent absorption coefficient was 5 x 10(-9)/cm.

[Risk of fluorosis in workers exposed to heat caused by fluoridation of drinking water?]. / Fluorosegefährdung von Hitzearbeitern durch Trinkwasserfluoridierung?

Franke, J; Runge, H; Fengler, F; Seyfert, G; König, H; Kleine, D; Spittel, U.

Z Gesamte Hyg ; 32(8): 492-5, 1986 Aug.

Article in German | MEDLINE | ID: mdl-3776256

Subject(s)

Bone Diseases/chemically induced , Fluoridation , Fluoride Poisoning/etiology , Hot Temperature/adverse effects , Occupational Diseases/chemically induced , Adult , Humans , Risk

[Risks of modern therapy for parkinsonism, and their consequences (author's transl)]. / Risiken der modernen Parkinsonbehandlung und ihre therapeutischen Konsequenzen.

Jörg, J; Kleine, D.

Nervenarzt ; 50(1): 33-42, 1979 Jan.

Article in German | MEDLINE | ID: mdl-424033

Subject(s)

Levodopa/adverse effects , Parkinson Disease/drug therapy , Cardiovascular System/drug effects , Digestive System/drug effects , Dopa Decarboxylase/therapeutic use , Dopamine/metabolism , Drug Interactions , Humans , Levodopa/metabolism , Levodopa/therapeutic use , Male , Middle Aged , Models, Chemical , Risk

[The proof of acrylnitrile exposure: detoxication of acrylnitrile by coupling with D-glucuronic acid]. / Zum Nachweis der Acrylnitril-Exposition: Detoxikation von Acrylnitril durch Kopplung an D-Glucuronsäure

Hoffmann, P; Kleine, D; Franzen, E.

Z Gesamte Hyg ; 22(5): 310-2, 1976 May.

Article in German | MEDLINE | ID: mdl-936684

Subject(s)

Acrylates/toxicity , Glucuronates/urine , Nitriles/toxicity , Animals , Inactivation, Metabolic , Lethal Dose 50 , Male , Rats

[Study of the sound absorption effect of light construction plates made of foam polystyrol]. / Untersuchung der schallabsorbierenden Wirkung von Leichtbauplatten auf Schaumpolystyrolbasis.

Henkel, W; Kleine, D; Morgenstern, E.

Z Gesamte Hyg ; 17(6): 394-6, 1971 Jun.

Article in German | MEDLINE | ID: mdl-5566306

Subject(s)

Polystyrenes , Protective Devices , Sound , Acoustics , Environmental Exposure , Environmental Health , Methods , Noise , Occupational Medicine

[Industrial hygiene studies in galvanotechnical workshops. IV. Industrial medicine]. / Arbeitshygienische Untersuchungen in Betrieben der Galvanotechnik. IV. Arbeitsmedizin.

Knoblich, K; Renker, U; Kleine, D; Franzen, E.

Z Gesamte Hyg ; 16(10): 742-8, 1970 Oct.

Article in German | MEDLINE | ID: mdl-5516147

Subject(s)

Chromium/adverse effects , Occupational Diseases/prevention & control , Occupational Medicine , Respiratory Tract Diseases/chemically induced , Germany, East , Humans , Occupational Health Services

[Industrial hygienic studies in galvanizing plants. II. Air pollution]. / Arbeitshygienische Untersuchungen in Betrieben der Galvanotechnik. II. Luftverunreinigungen.

Franzen, E; Kleine, D; Knoblich, K.

Z Gesamte Hyg ; 16(8): 569-74, 1970 Aug.

Article in German | MEDLINE | ID: mdl-5478512

Subject(s)

Air Pollution/analysis , Electrochemistry , Occupational Medicine , Chromium/analysis , Cyanides/analysis , Environmental Exposure , Humans , Nickel/analysis , Nickel/urine , Sodium Hydroxide/analysis , Sulfuric Acids/analysis

[Industrial hygiene of working places for quartz-glass blowers]. / Arbeitshygienische Gestaltung von Arbeitsplätzen für Quarzglasbläser.

Henkel, W; Kleine, D.

Z Gesamte Hyg ; 16(6): 431-3, 1970 Jun 01.

Article in German | MEDLINE | ID: mdl-4326758

Subject(s)

Equipment and Supplies , Glass , Occupational Medicine , Silicon Dioxide , Climate , Germany, East , Humans , Lighting , Noise , Ultraviolet Rays

[Industrial hygiene in galvanizing plants. I. Technology, employment structure, working places]. / Arbeitshygienische Untersuchungen in Betrieben der Galvanotechnik. I. Technologie, Beschaftigtenstruktur, Arbeitsplätze.

Renker, U; Knoblich, K; Kleine, D; Franzen, E.

Z Gesamte Hyg ; 16(6): 401-5, 1970 Jun 01.

Article in German | MEDLINE | ID: mdl-5512273

Subject(s)

Electrogalvanism, Intraoral , Occupational Medicine , Automation , Chromium , Climate , Environmental Exposure , Ergonomics , Female , Germany, East , Humans , Male , Middle Aged , Technology

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