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FMA-80 Fluorescence Mercury Analyzer
MILESTONE
w w w. m i l e s t o n e s r l . c o m
H E L P I N G
C H E M I S T S
The new Milestone FMA-80
The mercury problem
A wide range of mercury analyzers
Milestone offers a wide range of mercury analyzers.
The DMA-80 and the DMA-1 are direct mercury analyzers, which are
based on the principles of sample thermal decomposition, mercury
amalgamation and atomic absorption detection.
With over 1300 units installed in 80 different Countries worldwide,
the DMA series is the most successful direct mercury analyzer in the
market.
The new FMA-80 represents the latest addition to our portfolio, and
it is based on an innovative and unique combination of CV-AFS, Cold
Vapor Atomic Fluorescence Spectroscopy, and CV-AAS, Cold Vapor
Atomic Absorption Spectroscopy technologies.
Mercury is recognized as a chemical of global concern due to
its long-range transport in the atmosphere, its persistence in the
environment, its ability to bio-accumulate in ecosystems and its
significant negative effect on human health.
Mercury comes from a range of natural sources such as volcanoes,
soils, undersea vents, mercury-rich geological zones and forest fires,
as well as from fresh water lakes, rivers and the oceans.
However, human activity has increased the amount of mercury in
the environment in several ways, including through a variety of
combustion and industrial processes like coal-fired power generation,
metal mining and smelting and waste incineration.
DMA-80
DMA-1
FMA-80 advantages
FMA-80
The FMA-80 detects mercury contents in solutions by atomic fluorescence
(AFS).
Mercury is converted to its gaseous state by reduction of the dissolved
cation with SnCl2 and separated from the solution.
The gaseous mercury is then carried by an argon gas flow to the
fluorescence or absorption measuring cells.
AFS is the technology of choice for trace mercury detection, because of its
inherent linear range of measurement and excellent detection limits.
This technique differs from the more conventional AAS technique in that
it is more sensitive, more selective, and is linear over a wide range of
concentrations.
However, any molecular species present in the carrier gas will quench
the fluorescence signal and for this reason, the AFS technique is most
commonly used with an inert carrier gas such as argon.
AFS has better linearity and more stable baseline than AAS.
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•
•
•
•
•
•
High sensitivity
Wide dynamic range
High sample throughput
Fast analysis time
Full automation
Flexibility
Easy maintenance
AAS instead works better for more complex matrices, as it suffers less from
interferences.
The FMA-80 is a very flexible working platform as it can be chosen in different
configurations: AFS only or combination of AFS and AAS, depending on your
application.
Major Applications are: drinking water, surface water, ground water, waste water.
Food: cereals, flour, fish, meat, baby food, sugar, etc.
Environmental samples: sediments, soil, waste water, ashes, sludge, etc. Chemicals: oil products, resins, glues, plastics, solvents, etc.
Minerals, geological samples: ores, metals, alloys, coal, etc.
The FMA-80 is fully compliant to the following standard methods: EPA 245.1,
EPA 245.2, EPA 245.5, EPA 245.7, EPA 1631, EN 1483, EN 12338, EN 13806
and ISO 17852.
FMA-80 main components
Auto-sampler
»» Built-in
»» 36 or 89 positions
»» Dosing volume from 0,2 to 50 mL
Autosampler
Reduction section
Reduction section
»» Gas valve
»» Reaction mixing block
»» Gas liquid separation
»» High sensitivity
»» Small death volume
»» Short purge time
»» Easy maintenance
»» Gas purification system
Peristaltic pump
»» Single unit for reagent, rinsing solution and waste
»» Pump time from 5 to 250 seconds
»» Extremely precise and reproducible
»» Variable speed pump
»» Up to 30% of maximum speed for sample volume up 1 mL
»» Up to maximum speed for sample volume of 1 to 50 mL
Detector
Mercury inlet
Measuring cell
Atomic fluorescence spectrophotometer
Atomic fluorescence spectrophotometer
CV-AFS takes advantage of the unique characteristic of mercury that allows
vapor measurement at room temperature. Free mercury atoms in a carrier
gas are excited by a ultraviolet light source at 253,65 nm.
The excited atoms re-radiate their absorbed energy (fluoresce) at this same
wavelength and are detected using a photomultiplier tube.
Advantages of the use of a small cell:
»» High atoms concentration
»» High fluorescence light yield
»» Lower detection limit and noise level
FMA-80 user interface
The FMA-80 is operated via a compact control terminal with
easy-to-read, bright, full-color, touch screen display or by
a Windows-based computer. The terminal is provided with
multiple USB and RS-232 ports for direct printouts of methods
and runs.
The terminal runs Milestone’s EasyCONTROL software,
providing simple and intuitive, but extremely flexible and
powerful control over the analytical process. All parameters
(method profiles, absorbance signals, results, and calibrations)
are saved. They can be viewed, transferred using a USB pen
drive or integrated to LIMS.
EasyCONTROL software includes the unique AutoBLANK
feature. If, following the analysis of a sample with very
high mercury content, the pre-set blank level is exceeded;
EasyCONTROL will automatically run blank cycles until the
pre-set blank level is achieved.
EasyCONTROL software is fully compliant with FDA
regulations 21 CFR Part 11.
0,08
1,00
Emission
EasyCONTROL allows the operator to designate certain
samples as reference, or QC samples. Once a sample is
designated as a reference, a known concentration value is
entered. If the analysis of that sample yields a concentration
outside the acceptable range specified by the operator,
EasyCONTROL can be pre-set to either continue, stop, or
pause the analysis of the remaining samples.
1,20
+
Emission
Absorbance
0,06
0,80
CV-AFS
0,04
0,60
+
0,40
0,02
0,20
CV-AAS
+
+
0,00
0,00
0,20
0,40
Hg [ng]
0,60
0,80
Calibration for low range 0-10 ppb
3
9
12
4
8
12 16 20
CV-AFS at 10 ppt is 100 times more
sensitive than CV-AAS.
CVAFS peak well defined thanks to
gold amalgamator.
the blank value cycles until
0.01ng
If Hg [ng] is below
FMA-80 analytical performance
Afte
3 cycles
After maximum
Continue
AutoBLANK feature
0,60
If Hg [ng] is above
1.0ng
the blank value cycles until
the blank value
cycles until
3 cycles
After maximum
Continue
0,10
0,20
0,00
0,10
0
0,50
10
15
Out of range
Auto Blank
SampleOut of range
measurement
Auto Blank
1,00
1,00
0,60
0,80
Emission
0,80
0,40
3
cycles
Sample
measurement
0,60
0,40
0,20
0,20
0,00
5
10
Continue
0 Time
1,00
5
Continue
Auto Blank 2
10ppt
50%
15
5
10
Time
1ppb
Auto Blank 1
0
Emission
0,30
0,40
Reduce sample to
0,20
0,30
After maximum
Emission
Emission
of measurement
Out of range
Auto Blank
0
15
2
0,60
0,40
0,20
Continue
Continue
0,40
Continue
0,00
3
cycles
Time
1ppb
Auto Blank 1
0,60
Auto Blank1ppb
2
Automatic repeat
10ppt
Auto Blank 1
0,50
0,50
Automatic reduction
of sample volume
Automatic blank
3
0,20Reduce sample to cycles 50%
3 cycles
After maximum
Automatic repeat
of measurement
0,30
0,10After maximum
0.01ng
If Hg [ng] is below
0,80
After maximum
1.0ng
Hg [ng] is above
If Hg [ng] isIfbelow
0.01ng
0,60
0,60
Emission
Automatic blank
value cycle
1,00
Emission
AutoBLANK is an important feature
to avoid analytical issue between
a high and low mercury content
sample.
It is possible select the number of
cycles and amount of mercury.
After 1 ppb and two automatic
blanks, the FMA-80 is capable
of detecting 10 ppt without any
significant carry over effect.
value cycle
An important feature of the FMA-80
software is the automatic reduction
1.0ng
If Hg [ng] is above
of sample volume: from out range to
sample measurement.
the blank value cycles until
No need of auto-dilution module.
If Hg
is below
It is possible
to [ng]
select
the percent0.01ng
of
sample volume and number of cycles.
3 cycles
After maximum
1ppb
Automatic repeat
0,50 of measurementAuto Blank 1
Auto Blank 2
0,40
10ppt
Reduce
sample to
50%
Automatic blank
value cycle
4
0
6
8
10 12 14 16
2 Time
4 6
8
Time
10 12 14 16
0
Accuracy
Precision
Certified Material
Replicates
Certified Value
(µg/Kg)
Found Value
(µg/Kg)
Sample type
Replicates
Average +
SD (ng/L)
RSD
(%)
Serum L-1
10
0.73 ± 0.1
0.68 ± 0.02
Drinking water
10
4.21 ± 0.1
2.51
Nist 1568
10
5.8 ± 0.55
5.95 ± 0.207
Ground water
10
4.62 ± 0.11
2.38
Dorm-4
10
410 ± 55
430 ± 21
Surface water
10
11.7 ± 0.3
2.16
Nist 2709
10
1400 ± 80
1446 ± 33
ppt
10
5.5
5.0
4.5
0
Long term stability at 5 ng/L
ppt
10
20
5.5
5.0
4.5
11.0
10.0
9.0
02 04 06 08 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50
Average(ng/L): 5.19
SD(ng/L): 0.13
n: 50
ppt
RDS(%): 2.6
20
n
Short term stability at 10 ng/L
ppt
0
02 04 06 08 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50
n
0
1
Average(ng/L):10.50
SD(ng/L): 0.09
n: 5
RDS(%): 0.86
2
3
4
5
n
Milestone FMA-80
Application fields
Major Applications are: drinking water, surface water, ground water,
waste water.
Food: cereals, flour, fish, meat, baby food, sugar, etc.
Environmental samples: sediments, soil, waste water, ashes,
sludge, etc.
Chemicals: oil products, resins, glues, plastics, solvents, etc.
Minerals, geological samples: ores, metals, alloys, coal, etc.
MILESTONE
H E L P I N G
C H E M I S T S
UNI EN ISO 9001: 2008 CERTIFIED
MILESTONE Srl
Via Fatebenefratelli, 1/5 - 24010 Sorisole (BG) - Italy
Tel: +39 035 573857 - Fax: +39 035 575498
www.milestonesrl.com - email: analytical@milestonesrl.com
MILESTONE INC.
25 Controls Drive - Shelton, CT 06484 - USA
Tel: (203) 925-4240 - Toll-free: (866) 995-5100 - Fax: (203) 925-4241
www.milestonesci.com - email: mwave@milestonesci.com
The FMA-80 is fully
compliant with the following
standard methods:
EPA 245.1, EPA 245.2, EPA
245.5, EPA 245.7, EPA 1631,
EN 1483, EN 12338, EN
13806, ISO 17852.
MLS GmbH
Auenweg 37 D-88299 Leutkirch im Allgau - Germany
Tel: +49 (0)7561 9818-0 - Fax: +49 (0)7561 9818-12
www.mls-mikrowellen.de - email: mws@mls-mikrowellen.de
In Your Country:
CAT345EN-001
Standard methods
compliance
MILESTONE GENERAL K.K.
KSP, 3-2-1, Sakado - Takatsu-Ku, Kawasaki 213-0012 - Japan
Tel: +81 (0)44 850 3811 - Fax: +81 (0)44 819 3036
www.milestone-general.com - email: info@milestone-general.com