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| Brand | Meiko Rika |
|---|---|
| Origin | Japan |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | Needle EX |
| Instrument Type | Handheld Air Sampling Pump |
| Configuration | Single-Channel Gas Sampler |
| Flow Rate Range | 2 L/min |
| Maximum Vacuum Pressure | 0.5 bar |
| Flow Stability | <5% |
| Flowmeter Accuracy | ±2% |
| Service Life at Max Flow & Backpressure | >5,000 hours |
| Reusability | 25–30 cycles after thermal desorption |
| Compatible Manual Pumps | AP-20N, AP-20B (KITAGAWA) |
| Sample Volumes | 10 mL, 50 mL, 100 mL |
| Target Analytes | VOCs (e.g., ethanol, ethyl acetate, isopropanol, toluene, xylene), trimethylamine, short-chain fatty acids (propionic, isobutyric, n-butyric, isovaleric acid), and other trace organic vapors |
| Brand | Kōmyō Rikka (Komyo Rikka) |
|---|---|
| Origin | Japan |
| Model | AP-20N |
| Instrument Type | Handheld Air Sampling Pump |
| Configuration | Single-Channel Gas Sampler |
| Flow Rate Range | 2 L/min |
| Sample Volume Settings | 10 mL, 50 mL, 100 mL |
| Construction Material | Blue Antimicrobial Polymer Housing |
| Compatible With | GC Needle Extractors (e.g., Needle EX series) |
| Suitable For | Volatile Organic Compounds (VOCs) including gasoline vapors, kerosene fumes, fatty acids, floral volatiles, and organic solvents |
| Brand | Guangming Lihua |
|---|---|
| Origin | Japan |
| Model | DNPH 815H |
| Type | Single-Channel Handheld Air Sampling Cartridge for Carbonyl Compounds |
| Flow Rate | 0.2 L/min |
| Pressure Drop | 0.3 kPa at 0.2 L/min |
| Flow Stability | ±5% |
| Flowmeter Accuracy | ±5% |
| Service Life at Max Flow & Backpressure | 100 h |
| Continuous Operation at Max Flow & Backpressure | 2 min |
| DNPH Coating Mass | ~1 mg |
| Sorbent Mass | ~400 mg Silica Gel Impregnated with DNPH |
| Blank Levels (Factory Tested) | Formaldehyde <0.03 µg, Acetaldehyde <0.03 µg, Acetone <0.10 µg |
| Carbonyl Collection Capacity | 2.3 µmol (e.g., ~70 µg formaldehyde) |
| Recovery Rates (Reported) | Formaldehyde 99.3%, Acetaldehyde 102.6%, Acetone 95.4% |
| Shelf Life | 12 months (refrigerated storage required) |
| Package | 10 units per bag |
| Brand | Koemco |
|---|---|
| Origin | Japan |
| Model | DSP-550T |
| Instrument Type | General-Purpose Gas Sampler |
| Configuration | Single-Channel Sampling Pump |
| Flow Range | 50–550 mL/min |
| Maximum Vacuum Pressure | 5,000 Pa |
| Flow Stability | ±10 mL/min |
| Flowmeter Accuracy | ±10 mL/min |
| Service Life at Max Flow & Backpressure | 10,000 hours |
| Continuous Operation Duration at Max Flow & Backpressure | 12 hours |
| Power Source | 4× AA Alkaline or Ni-MH (2000 mAh) |
| Runtime (Alkaline) | ~11 h @ 300 mL/min, ~6 h @ 500 mL/min |
| Runtime (Ni-MH) | ~15 h @ 300 mL/min, ~12 h @ 500 mL/min |
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