Using methodology refined
and validated over many years - Warwick Analytical Service (WAS) is able to
offer a routine service for micro determination of Sulfur in organic and
inorganic compounds with analytical uncertainty of less than ±0.3%
absolute. The Sulfur method is covered by the company's ISO 17025 and
UKAS accreditation.
Analysis of Sulfur at WAS is carried out by combustion of an accurately weighed
sample in a silica oxygen flask over an accurately measured volume of aqueous
peroxide solution. Combustion of the sample in oxygen yields water-soluble
inorganic compounds. Percentage Sulfur is determined by titration with Barium
Perchlorate using Thorin screened with Methylene Blue as an indicator. Sets of
work typically include certified reference materials or organic analytical
standards to monitor detection trends in the method.
Requiring just a few milligrams of sample - the WAS method has been fully
validated and is linear from 0.006mg to 1mg Sulfur. WAS has also developed
special procedures to remove interferences from samples containing Fluorine,
Chromium, Arsenic and metals.
The accurate micro determination of Sulfur in organic and inorganic compounds
is of significant interest to a wide array of industries including chemicals,
petrochemicals, pharmaceuticals, biotech, environmental monitoring and
geochemistry.
Warwick Analytical Service is an ISO 17025, UKAS and GMP accredited company
dedicated to providing analytical excellence at a realistic cost. Through
experienced staff, the latest analytical instrumentation and working closely
with clients - Warwick Analytical Service has established a strong reputation
for informed personal service and delivering top quality data on time.
For further details of precise micro determination of Sulfur please contact
Warwick Analytical Service on tel. +44-2476-323223 or email
info@warwickanalytical.co.uk
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