Page 26 - Shimadzu Prominence

Conductivity Detector

CDD-10AVP
Handles a Wide Variety of Analysis Options

The CDD-10AVP conductivity detector achieves an even higher level of sensitivity and makes it
possible to perform a wide variety of analysis scenarios with a single unit. An option card
enables the simultaneous 2-channel measurement of anions and cations, and a suppressor
option allows expansion to a suppressor system for ultra-high sensitivity work. Organic acids
can be analyzed using Shimadzu's unique post-column pH-buffered electroconductivity method.

Ions Concentration (μg/L) RSD (%) Perform Analysis with Highest Sensitivity
F 50 0.46
Cl 200 0.23
The sensitivity of detectors that monitor weak electrical signals from analytes is affected by the
NO2 15 5.41
Br 100 0.71 inherent electrical noise of the detector itself. With the CDD-10AVP, electronic parts with low
NO3 80 0.54 electrical noise are used, and the layout of the electronic components has been optimized in order
PO4 500 0.63 to reduce noise levels, thereby attaining an extremely high level of sensitivity. Combining the
SO3 200 2.30 CDD-10AVP with a suppressor unit makes it possible to perform ultra-high sensitivity ion analysis
-
Reproducibility in Anion Analysis on the order of 0.25 μg/L (detection limit: S/N=3) for Cl .
(Lower concentration limits of quantitative analysis range for
2001 edition of Water Supply Testing Methods, Japan)
Applicable to Both Suppressor and Non-Suppressor Systems (available in limited regions)

When used with a CTO-20AC, expansion to a full suppressor system can be realized by adding the
suppressor option. Suppressor functions can be disabled when necessary, making it possible to
switch between anion analysis using a suppressor system and cation analysis using a
non-suppressed system. In addition to a single flow-line system, expansion to a dual flow-line
system is also possible, allowing the creation of a variety of system configurations. For example,
simultaneous analysis of anions and cations using a combination of suppressed and
non-suppressed detection is possible.

Peaks
1. Phosphoric acid High-Sensitivity Analysis of Organic Acids
2. Citric acid
3. Pyruvic acid
4. Malic acid Shimadzu's post-column pH-buffered electroconductivity method (Patent No. 2017498) enables
5. Succinic acid
6. Lactic acid selective, high-sensitivity analysis of organic acids. Even samples that traditionally require
7. Formic acid
8. Acetic acid time-consuming pretreatment to handle unwanted constituents can be analyzed after simple
9. Levulinic acid
10. Pyroglutamic acid
11. Iso-butyric acid pretreatment procedures such as dilution and filtration. The level of reliability attained in
12. n-butyric acid
quantitative analysis is much higher than that attained conventionally with a low-wavelength UV
method or a simple conductivity method. Superior linearity enables batch analysis in cases where
constituent concentrations differ greatly and, consequently, helps reduce analysis time.
N J O
Specifications
CDD-10AVP (228-45054-xx)
Temperature coefficient 25 nS·cm -1 /C (background: 285 μS·cm -1 ; cell temperature: 43°C)
Cell volume 0.25 μL
Cell constant 25 μS·cm -1
Material used in parts making contact with liquid PEEK, SUS316
Maximum operating pressure 2.9 MPa (30 kgf/cm 2 )
Response 0.05 to 10 sec., 10 steps
Zero adjustment Autozero, baseline shift
Operating temperature range 4 to 35°C
Dimensions, weight W260 × D420 × H140 mm, 6.0 kg
Power requirements AC110VA, 230V, 250VA, 50/60Hz

26