The Cintra 4040 is a double-beam, double-monochromator spectrophotometer designed to deliver the highest accuracy and sensitivity. Utilizing variable slits from 0.1 to 2.0 nm and Littrow double monochromators in a Czerny-Turner configuration, it achieves superior resolution and minimal stray light.
Its advanced specifications include photometric linearity better than 1.2% at 5 Abs, a wide dynamic range, and reduced noise, drift, and stray light. The wavelength range spans from 190 to 900 nm, and it supports all GBC accessories, such as autosamplers and temperature control units. These features make the Cintra 4040 ideal for specialized and research applications.
Key differences between the Cintra 4040 and Cintra 3030 are:
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Optical System: The Cintra 4040 employs a double-beam, double-monochromator system, whereas the Cintra 3030 uses a double-beam system with a single monochromator. This design in the 4040 reduces noise and stray light.
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Slit Range: The Cintra 4040 offers variable slits from 0.1 to 2.0 nm, while the Cintra 3030 supports a broader range of 0.2 to 5.0 nm.
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Accuracy and Sensitivity: The Cintra 4040 provides higher photometric accuracy, lower photometric error, and reduced stray light, making it better suited for highly sensitive applications.
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Application: The Cintra 4040 is designed for advanced and specialized research, while the Cintra 3030 is more suitable for general research needs.
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Stray Light: The double monochromator design of the Cintra 4040 helps minimize stray light, enhancing measurement accuracy.
These features make the Cintra 4040 more appropriate for specialized applications requiring high accuracy, while the Cintra 3030 is a more economical choice for general research.
The Cintra 4040 is a true double-beam, double-monochromator spectrometer offering ultimate accuracy and sensitivity. It uses variable slits ranging from 0.1 to 2.0 nm in 0.1 nm increments and Littrow double monochromators in a Czerny-Turner design, achieving the highest resolution with very low stray light. It also guarantees photometric linearity better than 1.2% at 5 Abs.
With a wide dynamic range and excellent optical specifications, this instrument delivers the best performance among UV spectrometers in its price range, making it highly suitable for complex applications requiring high precision.
| Specification | Details |
|---|---|
| Device Format | Spectrometer module with USB connection to external computer |
| Photometric System | Double beam, direct ratio recording system |
| Light Source | Tungsten-halogen lamp and deuterium lamp |
| Light Source Switching | Automatic light source switching at user-selected wavelength |
| Wavelength Range | 190 to 900 nm |
| Monochromator | Czerny-Turner configuration with holographic grating and automatic lamp peaking |
| Spectral Bandwidth | 0.1 nm to 2.0 nm in 0.1 nm steps |
| Scan Speed | 5 to 10,000 nm/min |
| Change Speed | 15,000 nm/min |
| Detector | Side-mounted R928 photomultiplier tube |
| Power Requirements | 100-120 or 220-240 VAC, 50/60 Hz |
| Sample Space | 150 x 125 x 280 mm (W x D x H) |
| Dimensions | 695 x 640 x 350 mm |
| Weight | 42 kg (without packaging), 86 kg (with packaging) |
| Stray Light | @220 nm (10 g/L NaI): < 0.0003%T @340 nm (50 g/L NaNO2): < 0.000005%T |
| Wavelength Accuracy | ± 0.01 nm |
| Wavelength Repeatability | ± 0.018 nm |
| Photometric Accuracy (NIST 930D filter, 0 to 0.5 A) | ± 0.0001 A |
| Photometric Accuracy (NIST 930D filter, 0 to 1.0 A) | ± 0.0003 A |
| Photometric Repeatability (0 to 0.5 A) | ± 0.000015 A |
| Photometric Repeatability (0 to 1.0 A) | ± 0.00002 A |
| Photometric Noise (500 nm, 2 nm bandwidth, 1 s smoothing) | <0.000023 A @ 0 A <0.000045 A @ 1 A <0.000199 A @ 2 A <0.000364 A @ 3 A <0.000191 A @ 4 A |
| Photometric Drift (340 nm, 2 nm bandwidth, constant ambient temperature, 1 hour warm-up) | < 0.00017 A/hr |
| Photometric Linearity | < 0.3% @ 4 Abs |
| Baseline Flatness (corrected over wavelength range) | < 0.00055 A |
