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| Brand | Shimadzu |
|---|---|
| Origin | Japan |
| Instrument Type | Floor-standing |
| Excitation Source | Arc/Spark |
| Detector Type | Photomultiplier Tube (PMT) |
| Optical Configuration | Paschen-Runge Mount |
| Focal Length | 750 mm (typical for PDA-series) |
| Grating Groove Density | 1200–2400 lines/mm (model-dependent) |
| Wavelength Range | 130–800 nm |
| Number of Fixed Channels | Up to 60 analytical channels |
| Nitrogen Detection Limit | ≤5 ppm in steel matrix |
| Compliance | ASTM E415, ISO 11577, JIS G 1253 |
| Brand | Thermo Fisher |
|---|---|
| Origin | USA |
| Model | ARL 3460 |
| Instrument Type | Floor-Standing |
| Excitation Method | Spark |
| Detector Type | Photomultiplier Tube (PMT) |
| Focal Length | 1000 mm |
| Grating Line Density | 3600 lines/mm |
| Wavelength Range | 120–850 nm |
| Number of Channels | 60 |
| Origin | Beijing, China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic (PRC) |
| Model | NAKE 750 |
| Price | USD 7,200 (Refurbished) |
| Instrument Type | Benchtop |
| Excitation Source | High-Energy Spark |
| Detector Type | Photomultiplier Tube (PMT) |
| Focal Length | 750 mm |
| Grating Groove Density | 2400 lines/mm |
| Wavelength Range | 120–800 nm |
| Number of Channels | Configurable (up to 32 fixed channels + 4 programmable PMT positions) |
| Operating Environment | 10–40 °C, <80% RH |
| Power Supply | 220 V AC, 16 A, 2.5 kVA |
| Dimensions (L×D×H) | 105 × 85 × 120 cm |
| Weight | 350 kg |
| Brand | Shimadzu |
|---|---|
| Origin | Japan |
| Instrument Type | Floor-standing |
| Excitation Method | Arc/Spark |
| Detector Type | Photomultiplier Tube (PMT) |
| Optical System | Czerny-Turner with Fixed Grating |
| Focal Length | 500 mm (typical for PDA-series) |
| Groove Density | 1200–2400 lines/mm (model-dependent) |
| Wavelength Range | 130–800 nm (vacuum UV to near-IR) |
| Number of Channels | Up to 60 pre-aligned PMT channels |
| Operating Environment | 10–30 °C, <80% RH non-condensing |
| Vacuum System | Continuous rotary vane pump with pressure stabilization |
| Spark Stand | Horizontal sliding enclosed design with stainless steel sample stage |
| Temperature Control | Thermostatically stabilized optical chamber at 38 ± 0.1 °C |
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