204/le: Metrohm AG, Herisau
, Switzerland, (1993) 1.
Soil pH was measured in a soil-saturated paste extract with a digital pH meter (Model 691, Metrohm Ag Herisau
The concentration of Li and Cl ions extracted by 1 M ammonium nitrate solution was measured using a Varian SpectrAA 220FS atomic absorption spectrometer (AAS) (Agilent Technologies Inc., Santa Clara, CA, USA) and a Metrohm Tiamo 1.3 ion analyser (Metrohm AG, Herisau
, Switzerland), respectively.
Until there was evidence of stabilization, the values for oxygen consumption (65 days), pH (with potentiometer, Digimed DMPH-2), electric conductivity (conductivimeter, Digimed DM3) and DO concentrations (Metrohm DOmeter, Herisau
AGCI1-91OO/E-635) were determined periodically.
The pH-meter Model 692 from Metrohm (http://www.metrohm.com/, Herisau
, Switzerland) equipped with a glass combination electrode was used for the pH measurements.
Kornea yuzeyi viskoelastik (%2,4 Hidroksipropilmetilseluloz, Mediol GmbH, Herisau
, Germany) ile kaplandi.
The Krebs solution contained (in mmol/l): 119 NaCl (AppliChem,) 15.0 NaHC[O.sub.3] (Merck, Darmstadt, Germany), 4.6 KCI (Haenseler AG, Herisau
, Switzerland), 1.5 CaC[1.sub.2] (Merck, Darmstadt, Germany), 11.0 Glucose (Sigma-Aldrich, Steinheim, Germany), 1.2 MgC[l.sub.2] x 6 [H.sub.2]0 (Merck, Darmstadt, Germany), 1.2 Na[H.sub.2]P[O.sub.4] x 1 [H.sub.2]O (Merck, Darmstadt, Germany).
Spectrum lab UV-VIS, Spectrophotometer Model 752S, Metrohm Herisau
pH meter, centrifuge, thermometer, pipettes, measuring cylinders and other glasswares.
Why Walser had stopped writing and, equally interesting, why he refused to move out of the sanatorium in Herisau
, even though he had been certified as healthy by the local doctors long before his death, will probably never be answered, though some have speculated that the decision had something to do, at least initially, with the Nazis banning his books.
The pH values of the beverages were previously analysed in triplicate using samples from 5 different batches with a digital pH meter (E520; Metrohm, Herisau
, Switzerland) at room temperature.
During bed preparation soil pH to a depth of 20 cm was measured in a 1:2.5 (v/v) soil-H2O suspension with a 716 DMS Titrino pH meter (Metrohm Ltd., Herisau
, Switzerland) fitted with a glass electrode (Thomas, 1996).