Huifen Instruments
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| Brand | Huifen Instruments |
|---|---|
| Origin | Shandong, China |
| Model | GC-7820 Dedicated NMHC Gas Chromatograph |
| Instrument Type | Laboratory Gas Chromatograph |
| Application Field | Environmental Monitoring |
| Oven Temperature Range | Ambient + 3 °C to 450 °C |
| Oven Ramp Rate | 0.1–40 °C/min |
| Oven Cool-down | ~8 min (450 °C → 50 °C) |
| Carrier Gas Flow Range & Control | 0–1200 mL/min |
| Carrier Gas Pressure Range & Control | 0–970 kPa |
| Injector Maximum Temperature | 450 °C |
| Injector Pressure Setting Range | 0–970 kPa |
| Injector Total Flow Setting Range | 0–1200 mL/min |
| Brand | Huifen Instruments |
|---|---|
| Origin | Shandong, China |
| Model | GC-7820 Helium Ionization Gas Chromatograph |
| Instrument Type | Laboratory Gas Chromatograph |
| Application Scope | General-purpose High-Purity Gas Analysis |
| Oven Temperature Range | Ambient + 3°C to 450°C |
| Oven Ramp Rate | 0.1–40°C/min |
| Oven Cool-down | 450°C → 50°C in ~8 min |
| Carrier Gas Flow Range & Control | 0–1200 mL/min |
| Carrier Gas Pressure Range & Control | 0–970 kPa |
| Injector Maximum Operating Temperature | 450°C |
| Injector Pressure Setting Range | 0–970 kPa |
| Injector Total Flow Setting Range | 0–1200 mL/min |
| Detector | Pulsed Discharge Helium Ionization Detector (PDHID) |
| Detection Limit | ≤10 ppb (for CH₄) |
| Baseline Noise | ≤0.05 mV |
| Baseline Drift | ≤0.2 mV/30 min |
| Repeatability | RSD ≤3% |
| Gas Purifier Compatibility | He, Ar, Ne, Kr, Xe (residual impurities ≤10 ppb) |
| Regulatory Compliance | GB/T 16942–2009 through GB/T 28125.1–2011 |
| Brand | Huifen Instruments |
|---|---|
| Origin | Shandong, China |
| Instrument Type | Laboratory Gas Chromatograph |
| Application Field | High-Purity Gas Analysis |
| Temperature Control Range | Ambient + 3°C to 450°C |
| Oven Ramp Rate | 0.1–40°C/min |
| Cooling Rate | ~8 min (450°C → 50°C) |
| Carrier Gas Flow Range & Control | 0–1200 mL/min |
| Carrier Gas Pressure Range & Control | 0–970 kPa |
| Injector Maximum Operating Temperature | 450°C |
| Injector Pressure Setting Range | 0–970 kPa |
| Injector Total Flow Setting Range | 0–1200 mL/min |
| Detection System | Dual FID |
| Column Configuration | Dual-column, dual-valve, dual-detector |
| Sample Introduction | Automated loop injection (0.5–1.0 mL) |
| Key Standards Compliance | GB/T 5274, ISO 6142, GB 11174, GB/T 12576, GB 19159, SH/T 0233 |
| Brand | Huifen Instruments |
|---|---|
| Origin | Shandong, China |
| Model | GC-7820A |
| Oven Temperature Range | Ambient +5 °C to 450 °C |
| Max. Ramp Rate | 0.1–80 °C/min |
| Cooling Rate | 350 °C → 50 °C in <5 min |
| Carrier Gas Flow Range & Control | 0–1200 mL/min |
| Carrier Gas Pressure Range & Control | 0–0.6 MPa |
| Injector Max. Temp. | 450 °C |
| Injector Pressure Setting Range | 0–0.6 MPa |
| Injector Total Flow Setting Range | 0–1200 mL/min |
| Independent Temperature Zones | 8 |
| Programmed Temperature Steps | 16 (expandable) |
| Max. Run Time | 999.99 min |
| Detector Compatibility | FID, TCD, ECD, FPD, NPD, PDHID, PED |
| FID Detection Limit | ≤3.0×10⁻¹² g/s (n-hexadecane) |
| TCD Sensitivity | ≥10,000 mV·mL/mg (benzene/toluene) |
| FPD Detection Limits | S ≤2×10⁻¹¹ g/s, P ≤1×10⁻¹² g/s (methyl parathion) |
| ECD Detection Limit | ≤1.0×10⁻¹⁴ g/mL (γ-HCH) |
| NPD Detection Limits | N ≤1.0×10⁻¹² g/s (azobenzene), P ≤1.0×10⁻¹² g/s (malathion) |
| Brand | Huifen Instruments |
|---|---|
| Origin | Shandong, China |
| Model | GC-7820S Trace Sulfur Analyzer |
| Instrument Type | Laboratory Gas Chromatograph |
| Application Field | Petrochemical Industry Dedicated |
| Oven Temperature Range | Ambient + 3 °C to 450 °C |
| Oven Ramp Rate | 0.1–40 °C/min |
| Oven Cool-down | ~8 min (450 °C to 50 °C) |
| Carrier Gas Flow Range & Control | 0–1200 mL/min |
| Carrier Gas Pressure Range & Control | 0–970 kPa |
| Injector Maximum Operating Temperature | 450 °C |
| Injector Pressure Setting Range | 0–970 kPa |
| Injector Total Flow Setting Range | 0–1200 mL/min |
| Detector | Flame Photometric Detector (FPD) |
| FPD Sulfur Minimum Detectable Amount | 5 pg/s (as dodecanethiol) |
| FPD Phosphorus Minimum Detectable Amount | 0.11 pg/s (as tributyl phosphate) |
| FPD Dynamic Range (S) | 10³ |
| FPD Dynamic Range (P) | 10⁴ |
| Column Oven Programmable Temperature Steps | 16 |
| Column Oven Temperature Setting Accuracy | ±0.1 °C |
| Injector Types Supported | Packed Column, Split/Splitless |
| Valve System | Multi-position automated switching valves (4-, 6-, 10-port), electromechanical or electronic pressure/flow-controlled auxiliary valves |
| Valve Switching Speed | 10 ms |
| Rated Valve Lifetime | 1,000,000 cycles |
| Data Interface | 10/100M adaptive Ethernet with embedded TCP/IP stack |
| Display | 7-inch full-color resistive touchscreen LCD |
| Language Support | English and Chinese UI |
| Software | Dedicated sulfur analysis workstation supporting up to 253 concurrent GC systems, Modbus RTU server integration for DCS connectivity |
| Optional Configuration | Electronic Pressure Control (EPC) module with auto-ignition, flame-out recovery, and pneumatic fault self-protection |
| Brand | Huifen Instruments |
|---|---|
| Origin | Shandong, China |
| Model | HF-908 |
| Instrument Type | Laboratory Gas Chromatograph |
| Oven Temperature Range | Ambient +2°C to 450°C |
| Maximum Ramp Rate | 250°C/min |
| Cool-down Time | <3.2 min (from 450°C to 50°C, with EPC) |
| Carrier Gas Flow Range & Control | 0–1250 mL/min (EPC) |
| Carrier Gas Pressure Range & Control | 0–200 psi (EPC) |
| Injector Maximum Operating Temperature | 450°C |
| Injector Pressure Setting Range | 0–200 psi (customizable) |
| Injector Total Flow Setting Range | 0–1250 mL/min (customizable) |
| Brand | Huifen Instruments |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | HGZ-300 |
| Output Flow Rate | 0–300 mL/min |
| Output Pressure | 0.4 MPa (≈58 psi, adjustable up to 116 psi per configuration) |
| Hydrogen Purity | ≥99.999% (v/v, O₂-equivalent residual) |
| Power Consumption | 100–150 W (typical operating range) |
| Input Voltage | 220 V AC, 50 Hz |
| Operating Temperature | 0–40 °C |
| Relative Humidity | <85% RH (non-condensing) |
| Dimensions (L×W×H) | 370 × 180 × 360 mm |
| Weight | 12 kg |
| Brand | Huifen Instruments |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | QTHF-80 |
| Price Range | USD 700 – 1,400 |
| Output Flow Rate | 0–2 L/min |
| Outlet Hydrocarbon Concentration (e.g., CH₄) | <0.1 ppm |
| Inlet Hydrocarbon Concentration (e.g., CH₄) | <100 ppm |
| Catalytic Reaction Temperature | 350 °C |
| Dimensions | 339 × 486 × 132 mm (3U rack-mountable) |
| Brand | Huifen Instruments |
|---|---|
| Origin | Shandong, China |
| Model | TD-06 |
| Type | Single-Stage Thermal Desorber |
| Gas Path Material | Passivated 316 Stainless Steel Tubing |
| Valve System | Precision Motorized 6-Port High-Temperature Valve (Low Dead Volume) |
| Sample Tube Handling | Manual Loading with Optimized Sealing Design |
| Tube Cleaning Function | Integrated Purge Cycle for Cross-Contamination Prevention |
| Temperature Control | Rapid-Heating Sample & Transfer Zones with Minimal Thermal Gradient |
| Flow Control | High-Accuracy Pressure and Mass Flow Regulation |
| Data Synchronization | TTL/Relay Trigger Output for GC and Data System Coordination |
| Method Storage | 10 User-Defined Thermal Desorption Protocols |
| Brand | Huifen Instruments |
|---|---|
| Origin | Shandong, China |
| Model | TD-09 |
| Instrument Type | Laboratory Thermal Desorption Unit for Gas Chromatography |
| Application Scope | General-Purpose Volatile Organic Compound (VOC) and Semi-Volatile Organic Compound (SVOC) Analysis |
| Heating Zones | Four Independently Controlled Zones (Primary Desorption Zone, Valve Oven, Transfer Line, Secondary Desorption Zone) |
| Cooling Method | Electronic Peltier Cooling |
| Automation Level | Full Sequence Automation with GC Synchronization |
| Sample Tube Activation | Integrated Tube Conditioning Protocol |
| Compliance Support | Designed to meet ASTM D6196, ISO 16017-1, and EPA TO-17 requirements for thermal desorption sampling and analysis |
| Software Interface | RS232/USB Communication |
| GC Interface | Universal Needle Port—Mechanically Compatible with All Standard Split/Splitless Inlets (Agilent, Thermo, Shimadzu, PerkinElmer, etc.) |
| Brand | Huifen Instruments |
|---|---|
| Origin | Shandong, China |
| Model | ZAHF-3L |
| Hydrocarbon Removal Principle | Integrated physical adsorption (5A molecular sieve, silica gel, activated carbon), chemical absorption (sodium hydroxide asbestos), and catalytic oxidation (Pd/6201 catalyst) |
| Output Flow | 0–1000 mL/min (adjustable) |
| Output Pressure | A: 0–0.45 MPa |
| B | 0–0.45 MPa |
| Maximum Output Pressure | 7 bar (100 psi) |
| Hydrocarbon Content (as CH₄) | <0.1 ppm |
| Dew Point | −60 °C |
| Power Supply | 220 V, 50 Hz |
| Operating Temperature | 15–40 °C |
| Relative Humidity | ≤70% |
| Noise Level | ≤42 dB(A) |
| Rated Power | 800 W |
| Weight | ~25 kg |
| Dimensions | 5U rack-mountable form factor |
| Stabilization Time | <0.5 h |
| Brand | Huifen Instruments |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | Authorized Distributor |
| Product Category | Domestic |
| Model | ZQHF-300 |
| Hydrogen Generation Principle | PEM-free Alkaline Electrolysis |
| Output Flow Rate | 300–500 mL/min |
| Output Pressure | 43–116 psi (0.3–0.8 MPa) |
| Hydrogen Purity | 99.9995% v/v |
| Power Consumption | 100 W |
| Input Voltage | 220 V AC, 50 Hz |
| Operating Temperature | 0–40 °C |
| Relative Humidity | <85% RH |
| Dimensions | 5U rack-mountable form factor |
| Weight | 12 kg |