4. H
C
S O
N
date: April 2008 page 4
vario EL cube characteristics I
simultaneous CHNS analysis and O, Cl option,
optimized for micro samples and semi-macro applications
unique method for combustion gas separation using the established
purge&trap technology for widest dynamic range and best gas
separation – again setting standards.
Software controlled option to use Argon as carrier gas instead of
Helium (on request)
5. H
C
S O
N
date: April 2008 page 5
vario EL cube characteristics II
optional IR detector for 2 ppm sulfur sensitivity
special precautions for fluorine containing samples
fully automatic analysis with 80 position sampler and
blank-free ball valve injector
Windows® software with 21 CFR Part 11 compliance
oxygen excess proof thermistor TCD for < 100 ppm to 100%
detection
more than 1 year stability of calibration,
10 years furnace warranty
6. H
C
S O
N
date: April 2008 page 6
vario EL cube –
following 100 years of experience
vario EL cube replaces the
successful vario EL III in the
line of vario elemental
analyzers in the ELEMENTAR
instrument portfolio.
It is based on the „cube“
platform which has proven
ist capabilities in the already
established vario MICRO
cube.
7. H
C
S O
N
date: April 2008 page 7
vario EL cube
Although being a universal CHNOS analyzer, special attention is
paid to:
Highest flexibility due to modular design
Stability of the instrument and analytical results
easy to use
The analysis of difficult sample matrices, e.g. fluorinated
compounds
9. H
C
S O
N
date: April 2008 page 9
80 position autosampler
large - 80 positions
blank-free
reliable – easy cleaning
easy reload during operation
single- or continuous operation
10. H
C
S O
N
date: April 2008 page 10
Patented Ball valve
inherent blank-free system
reliable function
keeps air out of the system
very long lasting operation
easy maintenance
11. H
C
S O
N
date: April 2008 page 11
Reliable furnace system
high-temperature furnace for continuous
operation up to 1200°C
low voltage concept for reliability and
safety
easy access for tube exchange
10 year warranty
12. H
C
S O
N
date: April 2008 page 12
Reaction tubes
high quality quartz reaction tubes
long lifetime and long service intervals
alternatively smaller tubes possible for special
applications (IRMS)
13. H
C
S O
N
date: April 2008 page 13
Clamp connections for easy maintenance and
reliable function
closed open
14. H
C
S O
N
date: April 2008 page 14
Purge & trap gas separation
dynamic purge & trap columns
powerful gas separation,
guarantees baseline separation for
all sample types
very long lifetime
15. H
C
S O
N
date: April 2008 page 15
Purge & trap technology: largest dynamic
range with guaranteed baseline separation
unique method for combustion
gas separation
Easy to use
Powerful separation
H2O
N2
CO2
SO2
17. H
C
S O
N
date: April 2008 page 17
The thermal conductivity detector is setting
standards in reliability and stability
own development
undestructible thermistor TCD
insensitive to oxygen intrusion
low noise baseline
for < 100 ppm to 100% detection
18. H
C
S O
N
date: April 2008 page 18
Infrared detector (optional)
2 ppm S detection
specific CO detection in O pyrolysis
analysis
accurate S determination in
fluorinated samples
19. H
C
S O
N
date: April 2008 page 19
Software
intuitive interface
easy editing
view graph during analysis
great export functionality
21CFR part11/LIMS/GLP
conformity
Windows XP/Vista/7
integrated Help-function
20. H
C
S O
N
date: April 2008 page 20
Advanced electronics concept
easy maintenance
fully digitalized
up-to-date electronics
industry standard micro-processor
small space requirements
allows remote service via internet or
modem
21. H
C
S O
N
date: April 2008 page 21
Advanced electronics concept
old electronics (vario EL III) new electronics
(vario EL cube)
22. H
C
S O
N
date: April 2008 page 22
Automated leak check
fully automated
takes less than 10 minutes, saves
valuable time
23. H
C
S O
N
date: April 2008 page 23
Easy maintenance, further optimized
one focus of the development was the
simplification of the maintenance
only one electronic board
software update via internet
Easy 5 side access in spite of smaller
size
24. H
C
S O
N
date: April 2008 page 24
no detector drift - the calibration lasts for months or years
no gas splitting - the whole sample volume is analyzed
optimized for micro and semi-macro measurements
special precautions for fluorine containing samples
vario EL cube features
25. H
C
S O
N
date: April 2008 page 25
vario EL cube features II
low cost per analysis due to low consumables requirements
and robust design
short and self-optimizing analysis time
Helium or Argon carrier gas (on request)
10 year warranty on the furnace system
26. H
C
S O
N
date: April 2008 page 26
Facts that did not change
reliable systems „Made in Germany“
outstanding service
professional handling of your inquiries
with “24 hour response“
support from our application laboratory
our friendly, cooperative atmosphere
27. H
C
S O
N
date: April 2008 page 27
Specifications
Combustion temperature 850°C – 1200°C
Operating modes: CHNS, CHN, CN, N, S, O (Cl option)
IR detectors available for sensitive S,
O or Cl measurement
Precision < 0.1% abs
(2 mg test substance, sulfanilamide)
Self optimizing analysis time 10 min in CHNS mode
7 min in CHN mode
Carrier gas Helium, alternatively Argon
28. H
C
S O
N
date: April 2008 page 28
Specifications II
Sample weight: up to 1 g mineral sample
up to 50 mg organic sample
Detection range: C: 0 to 40 mg abs. (or 100%)
N: 0 to 15 mg abs. (or 100%)
H: 0 to 3 mg abs. (or 100%)
S: 0 to 6 mg abs. (or 100%)
Detection limit < 100 ppm
2 ppm for S with IR detector
Autosampler 80 positions, alternatively 120 positions
29. H
C
S O
N
date: April 2008 page 29
Options
IR detectors for high performance
analysis of
Sulfur
Oxygen
Chlorine (patent pending)
IRMS coupling
manual gas/liquid injection
liquid autosampler VLS
more detectors possible on request
30. H
C
S O
N
date: April 2008 page 30
sample (N= 6, approx. 1 mg) N [%] C [%] H [%] S [%]
sulfanilic acid (theory) 8.09 41.61 4.07 18.51
Mean (6 samples) 8.14 41.54 4.01 18.51
std. dev. abs [%] 0.019 0.03 0.01 0.006
delta (deviation from theory) 0.05 0.07 0.06 0.002
The vario EL cube is optimized for the analysis of fine chemicals
with small sample sizes.
Applications: Fine chemicals
31. H
C
S O
N
date: April 2008 page 31
Applications: no deterioration of the analyzer
performance from fluorinated samples
sample (N=6; ca. 2mg) N [%]
± S abs.
C [%]
± S abs.
H [%]
± S abs.
S [%]
± S abs.
sulfanilamide 16.29
± 0.29
42.08
± 0.09
4.67
± 0.01
18.68
± 0.06
N-F-dibenzolsulfonimide 4.47
± 0.01
45.62
± 0.08
3.19
± 0.01
20.32
± 0.1
fluorbenzoic acid ------- 60.13
± 0.18
3.62
± 0.02
------
N-F-dibenzolsulfonimide 4.46
± 0.01
45.65
± 0.07
3.20
± 0.01
20.20
± 0.2
Trifluor-acetanilide 7.36
± 0.05
50.62
± 0.32
3.27
± 0.02
-------
sulfanilamide 16.27
± 0.01
42.00
± 0.05
4.68
± 0.02
18.54
± 0.21
The samples were analyzed in one sequence.
32. H
C
S O
N
date: April 2008 page 32
Applications: chlorinated samples
Sample (ca. 2mg) N [%] C [%] H [%] S [%]
benzylcysteine.HCl 6.838 52.978 6.856 15.195
" 6.794 52.938 6.864 15.506
" 6.823 53.041 6.844 15.549
" 6.839 52.928 6.851 15.518
Mean 6.819 52.969 6.853 15.524
SD abs [%] 0.03 0.063 0.010 0.022
SD rel [%] 0.330 0.118 0.150 0.143
diff. from theory [%] -0.07 -0.06 +0.03 +0.10
33. H
C
S O
N
date: April 2008 page 33
How to select within the vario family:
Micro or Macro Analyzer
Main distinguishing feature is the amount of organically
bound carbon to be analyzed in one sample.
Absolute carbon detection range:
0 – 7 mg vario MICRO cube
0 – 40 mg vario EL cube
0 – 100 mg vario MACRO cube
0 – 200 (400) mg vario MAX
34. H
C
S O
N
date: April 2008 page 34
How to select within the vario family II
Sample handling and injection (1)
Samples are wrapped in a Sn or Ag foil or liquids sealed in
capsules. Then loaded in a carousel magazine and moved
by gravity into the combustion zone.
Analyzers: vario MICRO cube
vario EL cube
vario MACRO cube
35. H
C
S O
N
date: April 2008 page 35
How to select within the vario family II
Sample handling and injection (2)
Samples (liquids or solids) are filled in an open and
reusable crucible (steel or ceramic) and moved by a robot
arm into the combustion zone.
After combustion the crucible with
the remaining ash (minerals)
is automatically removed.
Analyzer: vario MAX
36. H
C
S O
N
date: April 2008 page 36
How to select within the vario family III
Sample handling and injection (3)
Samples (liquids or gases) are injected directly into
the combustion zone by means of an automatic or
manual syringe.
Analyzers:vario EL liquid injection
vario TRACE liquid injection
