Chemical Analysis Instruments
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| Brand | Zyuyou |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | ATDS-20S Max |
| Instrument Type | Dual-Channel Secondary Thermal Desorber |
| Automation Level | Fully Automatic |
| Sample Capacity | 40 positions (2 × 20) |
| Compliance | HJ 644–2013, HJ/T 400–2007, GB/T 18883–2002, HJ 583–2010, HJ 734–2014, GB 50325–2020 |
| Brand | Dongxi Analysis |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Regional Classification | Domestic (PRC) |
| Model | GC-4000A |
| Instrument Type | Benchtop Laboratory Gas Chromatograph |
| Application Scope | General-Purpose Analytical GC |
| Oven Temperature Range | (Ambient + 5)°C to 400°C |
| Programmable Temperature Ramp | Up to 40°C/min (typical range) |
| Carrier Gas Flow Control Range | 0–100 mL/min (N₂, H₂, He) |
| Carrier Gas Pressure Control Range | 0–100 psi |
| Injector Maximum Operating Temperature | 400°C |
| Injector Pressure Setting Range | 0–100 psi |
| Injector Total Flow Setting Range | 0–120 mL/min |
| Detector Options | TCD, FID, FPD, NPD, ECD (user-selectable, up to three simultaneously) |
| Column Compatibility | Packed columns and capillary columns (0.1–0.53 mm ID) |
| Temperature Zones | 7 independently controlled zones (oven, injector ×1, detectors ×3, auxiliary ×2) |
| Oven Programmability | 10-step temperature program with ramp hold |
| Cooling | Motorized rear door auto-opening for accelerated oven cooldown |
| Gas System | Configurable single/dual/triple gas channels |
| Brand | Hefei Kejing |
|---|---|
| Origin | Anhui, China |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic (China-made) |
| Model | Au Foil Discs |
| Diameter Options | 1", 2", 3" |
| Minimum Custom Thickness | 1 mm |
| Packaging | Class 1000 Cleanroom Fabrication, Class 100 Clean Bag Sealed |
| Price Range | USD 0.50 – 499.00 (per piece, volume-dependent) |
| Brand | Hefei Kejing |
|---|---|
| Origin | Anhui, China |
| Model | MSK-HRP-MR100A |
| Voltage | 220 V AC, 50/60 Hz |
| Roller Material | Carbon steel with chromium plating (Rockwell hardness RC > 62) |
| Roller Dimensions | Φ100 × 100 mm |
| Gap Adjustment Range | 0–1.8 mm (via precision dial indicator) |
| Linear Speed | 22 mm/s |
| Motor Type | High-torque DC motor (0.55 A, 40 W) |
| Dimensions (L×W×H) | 381 × 241.3 × 355.6 mm |
| Weight | 55 kg |
| Certification | CE |
| Warranty | 1 year (lifetime technical support) |
| Max. Sample Hardness | ≤50 HRC |
| Min. Achievable Thickness (typical) | 0.04 mm (graphite-coated Cu foil), 0.09 mm (LiFePO₄-coated Al foil) |
| Brand | Hefei Kejing |
|---|---|
| Origin | Anhui, China |
| Manufacturer Type | Authorized Distributor |
| Product Category | Domestic |
| Model | Nb:SrTiO₃ |
| Crystal Structure | Cubic, a = 3.905 Å |
| Growth Method | Verneuil |
| Density | 5.175 g/cm³ |
| Melting Point | 2080 °C |
| Mohs Hardness | 6 |
| Thermal Expansion Coefficient | 10.4 × 10⁻⁶ /°C |
| Resistivity | 0.007 Ω·cm (0.7 wt% Nb), 0.08 Ω·cm (0.1 wt% Nb) |
| Loss Tangent (tan δ) | ~5 × 10⁻⁴ at 10 GHz, 300 K |
| Surface Finish | Single- or Double-Polished, Ra < 5 nm |
| Orientation Tolerance | <100> ± 0.5° |
| Standard Dimensions | 10 × 10 × 0.5 mm, 5 × 5 × 0.5 mm |
| Brand | KeChuang |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Regional Category | Domestic (China) |
| Model | GC9800 LPG-Dedicated Gas Chromatograph |
| Instrument Type | Laboratory Gas Chromatograph |
| Application Field | Petrochemical Industry-Specific |
| Oven Temperature Range | Ambient + 8 °C to 400 °C |
| Ramp Rate | 0.1–40 °C/min |
| Cooling Rate | 400 °C → 50 °C in ≤4 min |
| Carrier Gas Flow Range & Control | 0–100 mL/min |
| Carrier Gas Pressure Range & Control | 0–250 kPa |
| Injector Max Operating Temperature | 300 °C |
| Injector Pressure Setpoint Range | 0–250 kPa |
| Injector Total Flow Setpoint Range | 0–1200 mL/min |
| Brand | Ke Chuang |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Instrument Type | Laboratory Gas Chromatograph |
| Model | GC2002 |
| Temperature Control Range | 3–450 °C |
| Oven Ramp Rate | 0–120 °C/min |
| Cooling Time | <4 min (450 °C → 50 °C at 22 °C ambient) |
| Carrier Gas Flow Range | 0–1200 mL/min |
| Carrier Gas Pressure Range | 0–600 kPa |
| Injector Max Temp | 3–450 °C |
| Injector Pressure Setpoint Range | 0–600 kPa |
| Injector Total Flow Setpoint Range | 0–1200 mL/min |
| EPC/EFC Pressure Accuracy | ±0.001 psi |
| EPC/EFC Flow Accuracy | ±0.001 mL/min |
| Temperature Stability | ±0.01 °C |
| Retention Time RSD | <0.008% |
| Peak Area RSD | <1.0% |
| Brand | Kechuang |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | OEM Manufacturer |
| Product Category | Domestic |
| Model | GC910B Portable/Vehicle-Mountable Gas Chromatograph |
| Instrument Type | Portable Gas Chromatograph |
| Application Scope | General-Purpose |
| Oven Temperature Range | Ambient + 8 °C to 400 °C |
| Heating Rate | 0.1–40 °C/min |
| Cooling Rate | 400 °C to 50 °C in ≤4 min |
| Carrier Gas Flow Range & Control | 0–100 mL/min |
| Carrier Gas Pressure Range & Control | 0–250 kPa |
| Injector Maximum Operating Temperature | 300 °C |
| Injector Pressure Setting Range | 0–250 kPa |
| Injector Total Flow Setting Range | 0–1200 mL/min |
| Brand | Kechuang |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Instrument Type | Laboratory Gas Chromatograph |
| Model | GC9800N + Liquid Autosampler |
| Temperature Control Range | Ambient + 3 °C to 450 °C |
| Maximum Ramp Rate | 0–40 °C/min (adjustable in 0.1 °C/min increments) |
| Cooling Time | ≤4 min (350 °C → 50 °C, with motorized backdoor) |
| Carrier Gas Flow Range | 0–1200 mL/min |
| Carrier Gas Pressure Range | 0–970 kPa |
| Injector Temperature Max | 450 °C |
| Injector Pressure Setting Range | 0–970 kPa |
| Injector Total Flow Setting Range | 0–1200 mL/min |
| EPC/EFC Precision | ±0.001 psi (pressure), ±0.001 mL/min (flow) |
| Column Oven Dimensions | 305 × 160 × 278 mm (W × D × H) |
| Unit Weight | ≤50 kg |
| Power Supply | 220 V ±10%, 50 Hz ±5% |
| Operating Environment | 5–35 °C, ≤85% RH |