At Last - Traceability in
Titrimetry
The typical QC laboratory has long had
a responsibility to produce precise and accurate analyses. But with
today's business pressures there also comes a requirement for quick
production of results within a quality conscious environment.
ROMIL-TvR™
traceable volumetric reagents provide the means to achieve these aims
through cost effective products that are traceable to SI units through the
unique ROMIL
PrimAg® system.
ROMIL-TvR™ reagents are available in a wide
range of concentrations and in a variety of convenient pack sizes.
Supplied ready-to-use they enable the busy analyst to select the optimum
pack size for the application. The nominal molarities for the range are,
in general, accurate to within 0.1% (factor limit 0.999-1.001) and are
equally suitable for both manual and automatic titrators.
A number of 'high accuracy'
solutions are available for techniques where the maximum precision is
required. These reagents are generally specified with an accuracy ten
times greater than the basic reagents and consequently, care is called for
in their handling and use in order to attain the maximum accuracy of the
final result.
Some reagents are available
in concentrated form. Advantages of concentrates include reduced bought-in
cost as well as a smaller storage area requirement. They are supplied in
6-packs of vials containing the concentrate together with user
instructions and pre-printed labels for the final concentrations. Provided
that the instructions for dilution and make up are carefully followed, the
resultant solutions will be accurate to ±0.2% of the nominal molarity
(factor limit 0.998 - 1.002) and SI traceability will be maintained.
Alternatively, calibration (i.e., 'standardisation') of the final solution
with a suitable ROMIL PrimAg® stoichiometric
certified reference material will also provide such traceability and may also be used to improve
the accuracy.
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Key
benefits overview
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| Traceability to SI
units |
ROMIL-TvR™
reagents are pre-calibrated in-house within the ROMIL
PrimAg® scheme thereby providing
direct traceability to the SI unit, the mole. A major potential
source of error - the uncertainty associated with the assay of the
material - is thus controlled and significantly
reduced. |
| Ease and flexibility of use |
ROMIL-TvR™ reagents are
available in a wide range of molarities and pack sizes, offering
maximum choice in use. ROMIL-TvR™ concentrates have the flexibility
to be diluted to a number of easily and accurately obtained working
strengths. The use of a simple pack design to contain the
concentrate makes it easy to ensure complete transfer to the
volumetric flask. |
| Cost-effective analysis |
ROMIL-TvR™ reagents offer
exceptional value for money. A combination of attractive pricing
with defined traceability results in the highest cost to performance
ratio commercially available today.
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PrimAg is a registered trademark of ROMIL Ltd.
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