Biochemical Analysis Filters are engineered for high-accuracy biochemical analyzers, enzyme labeling instruments, and spectrophotometric systems. Using advanced dielectric coating technology, these filters deliver exceptional SNR, high cut-off depth, and stable transmission, ensuring precise absorbance measurements and consistent analytical results.
Designed to operate reliably over extended periods, SOT’s biochemical filters support a wide range of assays—from routine laboratory testing to advanced molecular diagnostics. Custom designs are available to match specific instrument architectures, detectors, and light sources, guaranteeing optimal system integration and performance.
Key Features
- High Signal-to-Noise Ratio (SNR): Advanced multilayer coatings suppress stray light and background noise for cleaner measurements.
- Accurate & Consistent Results: Optimized spectral performance ensures excellent linearity, repeatability, and test stability.
- Wide Wavelength Coverage: Supports a broad spectral range for diverse biochemical and enzyme-labeling applications.
- Durable & Reliable: Qualified to military-grade environmental and mechanical standards for long service life.
- Customizable Options: CWL, FWHM, optical density, size, and coating stack can be tailored to your instrument.
Spectral Performance
Standard and custom spectrum transmission curves are available. Filters can be optimized for target wavelengths and optical density levels required by your biochemical testing platform, maximizing accuracy and measurement confidence.
Coating Quality & Environmental Reliability
All biochemical analysis filters undergo rigorous qualification:
- Adhesion: MIL-C-675C compliant (no blistering or peeling)
- Thermal Cycling: −62 °C to +71 °C stability
- Abrasion Resistance: MIL-C-675C / CCC-C-440 compliant
- Humidity Resistance: 95–100% RH at 49 °C
- Solvent Resistance: Stable after acetone & alcohol exposure
- Salt Spray: 100 h at 35 °C, 5% saline
Standard Specifications
| Model | CWL (nm) | FWHM (nm) | Transmittance | Optical Density | Size |
|---|---|---|---|---|---|
| NBP340 | 340 ± 2 | 10 ± 2 | ≥60% | OD ≥ 4 @ 200–1100 | Custom |
| NBP405 | 405 ± 2 | 8 ± 2 | ≥85% | OD ≥ 4 @ 200–1100 | Custom |
| NBP450 | 450 ± 2 | 8 ± 2 | ≥85% | OD ≥ 4 @ 200–1100 | Custom |
| NBP492 | 492 ± 2 | 8 ± 2 | ≥85% | OD ≥ 4 @ 200–1100 | Custom |
| NBP505 | 505 ± 2 | 8 ± 2 | ≥85% | OD ≥ 4 @ 200–1100 | Custom |
| NBP510 | 510 ± 2 | 8 ± 2 | ≥85% | OD ≥ 4 @ 200–1100 | Custom |
| NBP546 | 546 ± 2 | 8 ± 2 | ≥85% | OD ≥ 4 @ 200–1100 | Custom |
| NBP578 | 578 ± 2 | 8 ± 2 | ≥85% | OD ≥ 4 @ 200–1100 | Custom |
| NBP600 | 600 ± 2 | 8 ± 2 | ≥85% | OD ≥ 4 @ 200–1100 | Custom |
| NBP630 | 630 ± 2 | 8 ± 2 | ≥85% | OD ≥ 4 @ 200–1100 | Custom |
| NBP750 | 750 ± 2 | 8 ± 2 | ≥60% | OD ≥ 6 @ 200–1100 | Custom |
Typical Filter Sets
| Fluorophore | Excitation Filter | Emission Filter | Dichroic Mirror |
|---|---|---|---|
| DAPI | NBP340 | NBP460 | DM415 |
| Atto425 / ECFP | NBP405 | NBP480 | DM450 |
| FITC / EGFP | NBP470 | NBP535 | DM505 |
| TRITC / PE | NBP530 | NBP535 | DM505 |
| Cy5 | NBP624 | NBP694 | DM660 |
Applications
- Biochemical Analyzers – Accurate absorbance and concentration measurements
- Enzyme Labeling Instruments – High sensitivity and repeatability
- Spectrophotometry – Improved SNR for precise readings
- Molecular Diagnostics – Reliable biomarker detection
- Biomedical Research – Enzyme kinetics and reaction studies
- Clinical Testing – Consistent, repeatable diagnostic results
Need a custom biochemical filter?
Share your target wavelength, bandwidth, OD, light source, and detector details—our engineers will design the optimal solution for your system.