Total Phosphorus and Total Nitrogen Analyzer
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| Brand | AIGIS |
|---|---|
| Model | Multi-Channel Rotary Selector Valve for Online Water Quality Monitoring |
| Flow Path Options | 3/4/6/8/10, 12/16, 24/28/32 channels |
| Port Bore Diameter | 0.6 / 0.75 / 1.0 / 1.5 / 2.0 / 3.0 mm (standard) |
| Threaded Port Specifications | 1/4-28 UNF female, 10-32 UNF female, 6-40 UNF female |
| Rotor Groove Volume | 1.27–5.24 µL |
| Wetted Materials | Ceramic, PEEK, PPS, PCTFE, PVDF, PTFE, N60 (polyamide-imide), SUS316L |
| Max. Operating Pressure | 1.6 MPa (liquid), 0.5 MPa (gas) |
| Fluid Temperature Range | 0–85 °C |
| Rotor/Stator Cycle Life | ≥1,000,000 cycles |
| Actuation Time | ≤4 s per full rotation |
| Power Supply | 12–24 VDC |
| Peak Driving Torque | 2.5 N·m |
| Communication Interfaces | RS232, RS485 |
| Home Position Detection | Auto-initialization on power-up |
| Ambient Operating Temperature | 0–60 °C |
| Ambient Humidity | ≤95% RH, non-condensing |
| Brand | Ailun General / Qingdao Ailun |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | AL-AC140 |
| Measurement Parameter | Total Phosphorus |
| Instrument Type | Laboratory-Based Analyzer |
| Measurement Principle | Acid Digestion + Molybdenum Blue Colorimetry |
| Measurement Range | 0–10 mg/L (expandable and adjustable) |
| Detection Limit | 0.01 mg/L |
| Repeatability | ≤5% RSD |
| Zero Drift | ≤0.01 mg/L |
| Span Drift | ≤1.0% over 24 h |
| Measurement Cycle | 20–120 min (adjustable in 1-min increments) |
| Digestion Time | Configurable |
| Sampling Interval | 10–9999 min or on-the-hour mode |
| Calibration Interval | 1–99 days, user-definable start time |
| Maintenance Interval | Monthly (~30 min per session) |
| Output Interfaces | RS-232, RS-485, 4–20 mA (optional) |
| Environmental Requirements | Indoor controlled temperature (+5 to +28 °C), humidity ≤90% non-condensing |
| Power Supply | AC 230 ±10 V, 50 ±10 Hz, 5 A |
| Accuracy (Standard Solution) | ±8.0% at 2.0 mg/L, ±5.0% at 5.0 mg/L, ±3.0% at 8.0 mg/L |
| Memory Effect | ≤0.3 mg/L at 2.0 mg/L standard, ≤0.2 mg/L at 8.0 mg/L standard |
| Field Sample Comparison | ≤0.2 mg/L for samples <2.0 mg/L |
| Brand | AOE |
|---|---|
| Origin | Shanghai, China |
| Model | WA653 |
| Instrument Type | Benchtop Laboratory Analyzer |
| Measurement Principle | UV-Vis Spectrophotometry (with Integrated Digestion) |
| Wavelength Range | 190–1100 nm |
| Wavelength Accuracy | ±0.5 nm |
| Photometric Accuracy (Transmittance) | < ±0.5% T |
| Photometric Repeatability | < ±0.2% T |
| Stray Light | < 0.05% T |
| Optical Stability | ±0.002 A/h |
| Detection Limit | 0.01 mg/L (for TN, TP, NH₃-N, COD) |
| Resolution | 0.001 mg/L |
| Measurement Range | Total Nitrogen (TN): 2–15,000 mg/L |
| Total Phosphorus (TP) | 1–10 mg/L |
| Ammonia Nitrogen (NH₃-N) | 0.01–30 mg/L |
| Chemical Oxygen Demand (COD) | 0.02–100 mg/L |
| Measurement Error | TN < ±8%, TP < ±5%, NH₃-N < ±5%, COD < ±5% |
| Digestion Temperature Control | TN: 122 °C ±0.5 °C |
| TP | 120 °C ±0.5 °C |
| COD | 165 °C ±0.5 °C |
| Digestion Time | TN: 40 min |
| TP | 30 min |
| NH₃-N | 10 min |
| COD | 10 min |
| Sample Throughput | Up to 16 samples (TN/TP/COD), up to 20 samples (NH₃-N), with optional expansion |
| Display | 65K-color TFT LCD |
| Data Storage | 40,000 measurement records + 200 preloaded calibration curves |
| Interface | USB |
| Brand | BEIYU TECHNOLOGIES |
|---|---|
| Origin | Shanghai, China |
| Model | CTP-700 |
| Compliance | GB 11893–1989, HJ 636–2012 |
| Measurement Principle | Ammonium Molybdate Spectrophotometry after High-Temperature Acid Digestion |
| Automation Level | Fully Automated Sample Handling, Digestion, Dilution, Colorimetric Detection, and Data Reporting |
| Detection Wavelength | 700 nm (fixed) |
| Sample Throughput | Up to 48 samples per batch (with optional 48-position autosampler) |
| Digestion Temperature Range | Ambient to 180 °C (programmable, ±1 °C accuracy) |
| Pressure Rating | ≤ 1.5 MPa for digestion vessels |
| Reagent Monitoring | Real-time level sensing with threshold alerts |
| LIMS Interface | ASTM E1384-compliant bidirectional data exchange via TCP/IP and RS232 |
| Safety Certification | CE-marked per EN 61010-1:2010 for laboratory equipment |
| Brand | EXPEC |
|---|---|
| Origin | Zhejiang, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | SUPEC 5000 TPTN |
| Application | Total Phosphorus (TP) and Total Nitrogen (TN) |
| Instrument Type | Laboratory-Based Analyzer |
| Measurement Principle | Spectrophotometry (UV-Vis) with Potassium Persulfate Digestion |
| Compliance Standards | GB 11893, HJ 636, National Surface Water Monitoring Guidelines |
| Safety Features | 9-layer pressure vessel safety protection, automated lid actuation, 120 °C precision temperature control |
| Automation Level | Full walk-away operation from sample loading to report generation |
| Sample Throughput | Batch processing with customizable multi-tube sample trays |
| Reagent Delivery | Independent parallel multi-channel injection system |
| Detection System | Dual-wavelength UV-Vis spectrophotometric detection module |
| Robotic Platform | High-precision articulated robotic arm with cup-position recognition |
| Brand | JiDa-Xiaotian'e |
|---|---|
| Origin | Jilin, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | GDYS-101SL |
| Measurement Parameter | Total Phosphorus |
| Instrument Type | Portable |
| Measurement Principle | Colorimetric Method (Standardized Molybdenum Blue Reaction per GB 11906–1989) |
| Measurement Range | 0.00–1.00 mg/L |
| Accuracy | ±5% of reading |
| Detection Limit | 0.02 mg/L |
| Brand | KC Starlight |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | XG310 |
| Price | USD 2,450 (FOB) |
| Measured Parameter | Total Phosphorus |
| Instrument Type | Laboratory Benchtop Analyzer |
| Measurement Principle | Spectrophotometry (Ammonium Molybdate Method) |
| Measurement Range | 0–20 mg/L |
| Accuracy | ≤ ±2% |
| Detection Limit | 0.02 mg/L |
| Resolution | 0.001 mg/L |
| Brand | LeiCi |
|---|---|
| Model | TP-585 |
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Instrument Type | Online Analyzer |
| Measured Parameter | Total Phosphorus (TP) |
| Measurement Range | 0–50 mg/L |
| Accuracy | ±10% of reading (as per actual water sample comparison) |
| Repeatability | ≤±10% |
| Minimum Measurement Cycle | 40 min (adjustable from 5–120 min) |
| Digestion Time | Configurable |
| Sampling Interval | 20–9999 min, with on-the-hour measurement option |
| Calibration Frequency | 1–99 days, user-definable start time |
| Maintenance Interval | ~30 min per month |
| Analog Output | 1 × 4–20 mA (optional 2-channel) |
| Communication Interface | RS232 or RS485 |
| Digital I/O | 1–6 relay outputs (220 VAC / 2 A) |
| Operating Environment | +5 to +28 °C, ≤99% RH (non-condensing) |
| MTBF | ≥720 h |
| Dimensions (W×D×H) | 1430 × 500 × 403 mm |
| Display & Control | Touchscreen interface with local command input |
| Data Retention | Non-volatile memory preserves configuration and logs during power loss |
| Auto-Recovery | Full system reset and residual reagent purge upon power restoration or fault recovery |
| Brand | Lianhua Tech |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | 5B-6P(V10) |
| Measurement Parameter | Total Phosphorus |
| Instrument Type | Laboratory Benchtop Analyzer |
| Measurement Principle | Spectrophotometry (Molybdenum Blue Method) |
| Measurement Range | 0–100 mg/L as P |
| Accuracy | ≤ ±5% of reading |
| Display | 5.6-inch color touchscreen interface |
| Data Storage Capacity | 12,000 measurement records |
| Data Output | USB port, infrared wireless transfer, built-in thermal printer |
| Calibration | Automated standard curve generation and storage using user-provided reference standards |
| Curve Fitting | User-definable polynomial or linear calibration curve fitting |
| Sample Formats | Cuvette-based (10 mm pathlength) and tube-based (16 mm diameter) measurement modes |
| Reagent Compatibility | Pre-formulated high-range and low-range total phosphorus reagent kits (acid digestion + molybdate-ascorbic acid color development) |
| Brand | Lianhua Tech |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | LH-T3TP |
| Measurement Parameter | Total Phosphorus |
| Instrument Type | Laboratory Benchtop Analyzer |
| Measurement Principle | Spectrophotometry (Molybdenum Blue Method per GB 11893–1989) |
| Measurement Range | 0–12 mg/L (multi-segment calibration) |
| Accuracy | ±8% FS (Full Scale) |
| Display | 3.5-inch TFT color LCD with analog-style UI |
| Light Source | Cold LED with narrow-band interference filter (rated lifetime ≥100,000 hours) |
| Sample Holders | Compatible with φ16 mm round cuvettes and 30 mm square cuvettes |
| Calibration Options | 15 pre-programmed calibration curves across 3 operating modes |
| Data Storage | 5,000 measurement records with timestamp and result value |
| Included Accessory | LH-A109 9-position digital digestion block (pre-configured for phosphorus digestion per standard protocols) |
| Brand | Lianhua Technology |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Manufacturer |
| Product Origin | Domestic (China) |
| Model | LH-P3TP |
| Measurement Parameter | Total Phosphorus |
| Instrument Type | Portable |
| Measurement Principle | Spectrophotometry (Molybdenum Blue Method) |
| Measurement Range | 0–100 mg/L as P |
| Accuracy | ≤ ±8% |
| Display | 3.5-inch color TFT LCD with dial-style UI |
| Built-in Calibration Curves | 20 pre-programmed curves with user calibration capability |
| Optical Calibration Support | Yes, for LED intensity stabilization |
| Over-range Indication | Visual red alert on dial interface |
| Reagent Compatibility | Pre-formulated liquid reagent kits supplied by Lianhua Technology |
| Compliance | Designed to meet standard requirements of HJ 670–2013 (Chinese EPA method for total phosphorus in water), compatible with ISO 6878:2004 and ASTM D515-89 (revised) |
| Brand | Lohand |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Product Category | Domestic |
| Model | LH-TN360 |
| Measurement Parameter | Total Nitrogen (TN) |
| Instrument Type | Benchtop Laboratory Analyzer |
| Measurement Principle | UV Spectrophotometry after Alkaline Potassium Persulfate Digestion |
| Measurement Range | 0–100 mg/L as N |
| Accuracy | ≤ ±5% |
| Display | 7-inch Color TFT LCD with Optional Chinese/English UI |
| Data Storage | 5000 Sample Records with Power-Fail Protection |
| Calibration Curves | 25 Preloaded (20 Standard + 5 User-Fit) |
| Connectivity | USB 2.0, Infrared Interface, Optional Thermal Printer Support |
| Compliance | HJ 636–2012 |
| Brand | Shimadzu |
|---|---|
| Origin | Jiangsu, China |
| Manufacturer Type | Manufacturer |
| Product Category | Domestic |
| Model | TNP-4200 |
| Measurement Parameters | Total Nitrogen (TN), Total Phosphorus (TP) |
| Instrument Type | Online Analyzer |
| Measurement Principle | Alkaline Potassium Persulfate UV Oxidation – UV Absorbance (TN) |
| Detection Range | TN: 0–2 / 5 / 10 / 20 / 50 / 100 / 200 mg N/L |
| TP | 0–0.5 / 1 / 2 / 5 / 10 / 20 / 50 / 100 mg P/L |
| Cycle Time | 60 min (simultaneous TN & TP) |
| Power Consumption | ≤300 VA (AC 100–240 V, 50/60 Hz) |
| Operating Environment | Indoor use only |
| Sample Pretreatment | High-speed rotary homogenizer with auto backwash filter |
| Auto-Cleaning | Scheduled distilled water flush of fluidic pathways |
| Auto-Calibration | Dual-point (zero & span) using standard solutions |
| Brand | Shimadzu |
|---|---|
| Origin | Jiangsu, China |
| Manufacturer Type | Manufacturer |
| Product Origin | Domestic |
| Model | TP-4110 |
| Measurement Parameter | Total Phosphorus (TP) |
| Instrument Type | Online Analyzer |
| Measurement Principle | Potassium Persulfate UV Oxidation–Molybdenum Blue Spectrophotometry |
| Detection Range | 0–0.5 / 1 / 2 / 5 / 10 / 20 / 50 / 100 mg P/L |
| Measurement Cycle | 60 min |
| Sample Pretreatment | High-speed rotary homogenizer + automatic backwash filtration using tap water |
| Automatic Cleaning | Distilled water flush at user-defined intervals |
| Power Supply | 220 V ±10 V, 50/60 Hz, ≤300 VA |
| Operating Temperature | 1–40 °C |
| Relative Humidity | ≤90 % RH (non-condensing) |
| Installation | Indoor only |
| Compliance | Designed for continuous compliance monitoring per China’s HJ 353–2019, HJ 354–2019, and HJ 355–2019 standards for online water quality analyzers |
| Brand | Tianer |
|---|---|
| Origin | Tianjin, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | TE-5002 |
| Measurement Parameters | Total Phosphorus (TP) and Total Nitrogen (TN) |
| Instrument Type | Benchtop Laboratory Analyzer |
| Measurement Principle | Spectrophotometry (for TP/TN digestion–colorimetric method) |
| Measurement Range | 0–100 mg/L for both TP and TN |
| Accuracy | ≤ ±5% |
| Detection Limit | 0.01 mg/L |
| Resolution | 0.001 mg/L |
| Repeatability | ≤ ±2% |
| Optical Stability | ≤ ±0.005 Abs/20 min |
| Optical System | Fiber-optic Photometric Detection |
| Light Source | Imported Cold Light LED (Lifespan > 100,000 h) |
| Display | 8-inch HD Capacitive Touchscreen |
| Interface Language | Default Chinese |
| Detection Modes | Rotating Cuvette (360°), 10 mm & 30 mm Cuvette, Digital Electrode Ports (2 independent) |
| Readout Modes | Concentration (mg/L), Absorbance (Abs), Transmittance (%) |
| Calibration | Single-point and Multi-point Calibration |
| Pre-stored Curves | 180 Method-Specific Calibration Curves (incl. EPA, ISO, and HJ standards) |
| Data Storage | Up to 1,000,000 Records with Timestamp, Sample ID, Operator ID, and Method Tag |
| Data Export | USB Port + Built-in Thermal Printer |
| Housing Material | Flame-Retardant ABS with Corrosion-Resistant Surface Finish |
| Dimensions (W×D×H) | 392 × 315 × 170 mm |
| Weight | 4.4 kg |
| Brand | Water Doctor |
|---|---|
| Origin | Hunan, China |
| Model | Dr-T9003 |
| Measurement Principle | Spectrophotometry (UV-Vis) |
| Detection Range | 0–100 mg/L (for both TP and TN) |
| Accuracy | ≤ ±5% |
| Detection Limit | Not specified (instrument-level LOD determined by method, not instrument spec) |
| Wavelength Range | 340–900 nm |
| Wavelength Accuracy | ±1 nm |
| Wavelength Repeatability | < 0.2 nm |
| Spectral Bandwidth | 4 nm |
| Transmittance Error | ±0.5% |
| Transmittance Repeatability | ≤ 0.2% T |
| Absorbance Resolution | 0.001 Abs |
| Optical Stability | ≤ ±0.005 Abs / 20 min |
| Light Source | Imported cold-light LED (rated lifetime > 100,000 h) |
| Display | 8-inch HD capacitive touchscreen |
| Sample Holders | Rotatable tube holder (360°), dual cuvette positions (10 mm & 30 mm pathlength), four independent digital electrode ports |
| Calibration | Single- or multi-point calibration with up to 1000 pre-stored method curves |
| Data Storage | 1,000,000 measurement records |
| Interface | USB port for data export (U-disk compatible), built-in thermal printer |
| Housing Material | Corrosion- and heat-resistant ABS |
| Dimensions | 392 × 315 × 170 mm |
| Weight | 4.4 kg |
| Brand | Yuntang |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | Manufacturer |
| Country of Origin | China |
| Model | YT-TP |
| Detection Parameter | Total Phosphorus |
| Instrument Type | Portable |
| Measurement Principle | Spectrophotometry (Ammonium Molybdate Method per GB 11893-89) |
| Detection Range | 0–30 mg/L (segmented) |
| LOD | 0.02 mg/L |
| Accuracy | ±5% FS |
| Stability | <0.5% / 20 min |
| Repeatability | <0.5% RSD |
| Optical Drift | ≤0.002 A within 20 min |
| Light Source | High-brightness imported LED with auto-calibration |
| Display | 10.1″ color TFT touchscreen |
| OS | Android 7.1.1 |
| Data Storage | 8 million records with time-based indexing |
| Connectivity | Wi-Fi, RJ45, Bluetooth, mobile hotspot, USB 2.0 |
| Power Supply | AC 220 V ±10%, 50 Hz |
| Dimensions | 444 × 303 × 173 mm |
| Weight | 5.2 kg (net, excluding battery/adapter) |
| Operating Environment | 5–40 °C, RH <85% (non-condensing) |
| Printer | Built-in thermal line printer with QR code support |
| Compliance | GB 11893-89 |