Voltammetric Polarograph
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| Origin | Sichuan, China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic (China) |
| Model | JP-2E |
| Pricing | Upon Request |
| Polarographic Sensitivity | <5×10⁻⁸ mol/L (Cd²⁺, Linear Sweep Voltammetry) |
| Polarographic Peak Resolution | <32 mV |
| Anti-Interference Capability (Pre-reduced Species) | >20,000:1 |
| Repeatability Error | <0.4% |
| Current Range | 15 nA–400 µA F.S., 23 programmable decades |
| Polarization Potential Range | ±4000 mV, minimum step: 2 mV |
| Scan Rate | 50–1600 mV/s |
| Scan Amplitude | 50–1600 mV |
| Scan Period | 2–22 s |
| Power Supply | AC 220 V ±10%, 50 Hz |
| Weight | 15 kg |
| Interface | USB 2.0 for PC connectivity |
| Software Modes | Linear Sweep Voltammetry, Stripping Voltammetry (Anodic/Cathodic), Cyclic Voltammetry (Anodic/Cathodic), First/Second Derivative Voltammetry |
| Quantitative Methods | Calibration Curve (Linear & Quadratic Regression), Standard Addition, Standard Comparison |
| Electrode Compatibility | Glassy Carbon Electrode (GCE) interface with full Dropping Mercury Electrode (DME) functional equivalence |
| Data Export | Native CSV/Excel-compatible output, curve annotation, overlay, and statistical post-processing |
| Brand | Chengyi |
|---|---|
| Origin | Sichuan, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | JP-2C |
| Price Range | USD 2,800 – 4,300 (FOB) |
| Polarographic Sensitivity | <5×10⁻⁸ mol/L (Cd²⁺, Linear Sweep Polarography) |
| Resolution of Polarographic Peaks | <32 mV |
| Tolerance to Pre-reduced Interferents | >10,000:1 |
| Repeatability Error | <0.5% |
| Range Switching Error | <0.5% |
| Current Range | 15 nA – 400 µA F.S., 23 programmable decades |
| Polarization Potential Range | ±3904 mV, minimum step 32 mV |
| Scan Rate | 250 mV/s |
| Scan Amplitude | 500 mV |
| Scan Period | 1 s – 1000 s |
| Power Supply | 100–240 VAC, 50/60 Hz |
| Weight | 15 kg |
| Display | 19″ LED LCD (1366×768), USB mouse & dual USB host ports (for firmware update & data export) |
| Parameter Storage | Up to 5 user-defined methods |
| Onboard Quantification | Standard Comparison Method supported |
| ADC/DAC Resolution | 12-bit (1/4096 precision) |
| Embedded Platform | ARM-based real-time control system |
| Compliance | Designed for GLP-aligned laboratory workflows |
| Brand | Chengyi |
|---|---|
| Origin | Sichuan, China |
| Model | JP-2D |
| Polarographic Current Range | 15 nA–400 µA (F.S., 23 programmable ranges) |
| Polarization Potential Range | ±3904 mV (32 mV resolution) |
| Scan Rate | 50–1000 mV/s |
| Scan Amplitude | 50–1000 mV |
| Scan Period | 1–1000 s |
| Sensitivity | <5×10⁻⁸ mol/L (Cd²⁺, linear sweep polarography) |
| Resolution | <32 mV |
| Anti-Interference Ratio (pre-reduction substances) | >10⁴:1 |
| Repeatability Error | <0.3% |
| Range-Switching Error | <0.3% |
| ADC Precision | 18-bit |
| Power Supply | 100–240 VAC, 50/60 Hz |
| Power Consumption | ~30 W |
| Weight | 15 kg |
| Interface | USB 2.0 |
| Integrated Control Unit | 19.5″ all-in-one industrial PC (optional external Windows PC support) |
| Software | JP-2D Polarographic Analysis Suite (Windows 7/8/10, 32/64-bit |
| Brand | Chengyi |
|---|---|
| Origin | Sichuan, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | JP-2E |
| Price Range | USD 4,200 – 7,000 |
| Sensitivity | <5×10⁻⁸ mol/L (Cd²⁺, linear sweep polarography) |
| Resolution | <32 mV |
| Anti-interference Ratio (pre-reduction substances) | >20,000:1 |
| Repeatability Error | <0.4% |
| Range Switching Error | <0.4% |
| Current Range | 15 nA – 400 µA F.S., 23 programmable ranges |
| Polarization Potential | ±4000 mV, min. step 2 mV |
| Scan Rate | 50–1000 mV/s |
| Scan Amplitude | 50–1000 mV |
| Cycle Time | 2–22 s |
| Power Supply | AC 220 V ±10%, 50 Hz |
| Weight | ~15 kg |
| Brand | Chengyi |
|---|---|
| Model | JP-303E |
| Origin | Sichuan, China |
| Sensitivity | <2×10⁻⁸ mol/L (Cd²⁺, linear sweep polarography) |
| Peak Resolution | <30 mV |
| Antioxidant Tolerance | >20,000:1 |
| Repeatability Error | <0.1% |
| Range Switching Error | <0.2% (≥1.5×10³ nA), <0.4% (≤1.0×10³ nA) |
| Potential Resolution | 2 mV |
| Current Resolution | 0.03% of full scale (conventional, 1st & 2nd derivative modes) |
| Current Range | (6–4×10⁵) nA, 25 programmable ranges |
| Polarization Potential Range | ±4094 mV, min. step 2 mV |
| Scan Rate | 50–1000 mV/s, continuously adjustable |
| Scan Amplitude | 0–1600 mV, min. step 2 mV |
| Scan Duration | 1–1000 s |
| Power Supply | AC 220 V, 50/60 Hz |
| Brand | -- |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Authorized Distributor |
| Region of Manufacture | Domestic (China) |
| Model | JP-2D |
| Price | Upon Request |
| Brand | Metrohm |
|---|---|
| Origin | Switzerland |
| Manufacturer | Metrohm AG |
| Country of Origin | Imported |
| Model | 884 |
| Pricing | Upon Request |
| Brand | Metrohm |
|---|---|
| Origin | Switzerland |
| Manufacturer | Metrohm AG |
| Product Type | Imported Instrument |
| Model | 894 Professional CVS |
| Pricing | Available upon Request |
| Brand | Metrohm |
|---|---|
| Origin | Switzerland |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Origin Category | Imported |
| Model | 909 UV |
| Pricing | Upon Request |
| Brand | Metrohm |
|---|---|
| Origin | Switzerland |
| Manufacturer | Metrohm AG |
| Type | Imported |
| Model | 946 |
| Pricing | Upon Request |
| Brand | scchengyi |
|---|---|
| Origin | Sichuan, China |
| Model | JP-06A |
| Current Measurement Range | 1×10⁻³ A to 1×10⁻⁹ A (F.S.) |
| Sensitivity | 5×10⁻⁸ mol/L for Cd²⁺ (Linear Sweep Polarography) |
| Potential Range | −4000 mV to +4000 mV (min. step: 0.15 mV) |
| Scan Rate | 0.05–1 V/s |
| DME Drop Period | 1–1000 s |
| Resolution | < 2.5 mV |
| Anti-Interference Ratio (for pre-reduced species) | 10⁴ : 1 |
| Repeatability Error | < 0.1 % |
| Range Switching Error | < 0.1 % |
| ADC | 24-bit |
| DAC | 16-bit |
| Power Consumption | < 10 W |
| Brand | Starwood |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Manufacturer |
| Model | 884 |
| Price Range | USD 14,000–28,000 |
| Key Measurement Modes | DPV, NPV, DCV, SWV, ACV (1st & 2nd), CV, PSA, CCPSA, CVS, CPVS |
| Potential Range | ±5 V |
| Max Output Potential | ±12 V |
| Max Output Current | ±80 mA |
| Scan Rate | 1 mV/s–3 V/s (1 mV resolution) |
| Current Measurement Range | 10 nA–10 mA (7 decades) |
| Electrode Support | Metrohm Multi-Mode Electrode (MME), Rotating Disk Electrodes (Au, Pt, GC, Ag, Graphite) |
| Interface | USB |
| Compliance | GLP-ready with user authentication, audit trail, electrode self-test, and automated calibration logging |