Page 16 - Shimadzu Prominence

UV-VIS Detectors / Photodiode Array Detectors

The lineup includes SPD-20A/20AV dual-wavelength absorbance detectors and SPD-M20A/M30A
photodiode array detectors. The SPD-M30A incorporates a new type of capillary cell to offer
higher sensitivity and lower dispersion. All models offer temperature control for increased
baseline stability with respect to temperature fluctuations and improved data reliability.
SPD-M30A Photodiode Array Detector
Supports diverse applications from HPLC to UHPLC
This detector achieves a 0.4×10 AU noise level. The SR-Cell (Sensitivity and Resolution Cell)
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significantly cuts peak dispersion. This model supports analysis from conventional LC to
ultra-fast and UHPLC analysis. The optional high-sensitivity cell has an 85 mm optical path
length and is able to detect trace components that were conventionally difficult to detect. The
TC-Optics function further improves baseline stability.

SPD-M20A Photodiode Array Detector
General-purpose model
The SPD-M20A is a general-purpose model incorporating a deuterium lamp. The light-source compensation
function achieves a noise level of 0.6×10 AU. Cell temperature control ensures baseline stability.
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SPD-20A / 20AV UV-VIS Detectors

Offering dual-wavelength mode
These UV-VIS detectors can measure two wavelengths simultaneously. The SPD-20AV offers a mode that lights the deuterium lamp and
tungsten lamp simultaneously and permits highly sensitive wavelength-programming detection across the ultraviolet and visible regions.

Extensive Range of Linearity

mAU
Superior signal processing technology maintains the
Correlation coefficient
detector linearity to the ASTM standard: R 2 =0.9999
• SPD-20A/20AV : 2.5 AU
• SPD-M20A/M30A : 2.0 AU
This range is a powerful attribute for batch analysis
demanding a wide range of linearity, such as the
purity testing of reagents.

min
Linearity Data for SPD-M30A
Temperature Control Provides Baseline Stability and Reliable Analysis Data

The SPD-M30A detector employs TC-Optics (temperature-controlled optics) and uses SR-Cells (low-dispersion cells optimized for heat
transfer at the cell inlet). This successfully achieves the low peak dispersion required for ultra-fast analysis and rapid baseline stabilization.
The M20A cell temperature control function also provides baseline stability with respect to temperature fluctuations.
Without Cell-Temperature Control Cell Temperature Controlled at 40°C
mAU
25 254 nm
20 30°C Cell temperature Cell temperature
Room temperature
15 Room temperature Room temperature
10
25°C
5 SPD-M30A
0
Baseline
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-10 Baseline
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Other vendor's PDA detector
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0 100 200 300 400 500 600 min
Effect of SPD-M30A TC-Optics Effect of SPD-20A/20AV/M20A Cell Temperature Control
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