Water Quality Analysis
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Showing 1981–2010 of 3714 results
| Brand | LiquriTech |
|---|---|
| Model | LQ-5Z-H2SO4 |
| Origin | Japan |
| Detection Principle | Conductivity-Based Electrochemical Measurement |
| Measurement Range | 0.00–2.00% H₂SO₄ (w/w) |
| Sample Temperature Range | 0.0–40.0 °C |
| Electrode Material | PPS (Polyphenylene Sulfide) Body with Stainless Steel Sensing Elements |
| Temperature Compensation | Automatic (NTC-based, 0–40 °C) |
| Calibration | Zero & Span Calibration via Manual Adjustment |
| Ingress Protection | IP66 |
| Power Supply | 3 × LR03 (AAA) Alkaline Batteries with Auto-Shutdown |
| Electrode Cable Length | 1 m |
| Instrument Dimensions | 38(H) × 75(W) × 180(D) mm |
| Electrode Dimensions | Ø17 × 180 mm |
| Instrument Weight | ~300 g |
| Electrode Weight | ~50 g |
| Compliance | CE-marked for industrial use |
| Brand | LiquriTech |
|---|---|
| Model | LQ-5Z-HNO3 |
| Measurement Principle | Conductivity-based Electrochemical Sensing |
| Measuring Range | 0.00–2.00% HNO₃ (w/w) |
| Sample Temperature Range | 0.0–40.0°C |
| Accuracy | ±0.02% (full scale, typical) |
| Temperature Compensation | Automatic (NTC sensor, 0–40°C) |
| Calibration | Zero & Span (single-point or two-point) |
| Enclosure Rating | IP66 |
| Power Supply | 3× LR03 (AAA) alkaline batteries with auto-off |
| Electrode Material | PPS (Polyphenylsulfone) body, platinum/SS sensing elements |
| Cable Length | 1 m |
| Dimensions (instrument) | 38(H) × 75(W) × 180(D) mm |
| Weight (instrument only) | ~300 g |
| Electrode Dimensions | φ17 × 180 mm |
| Electrode Weight | ~50 g |
| Compliance | CE-marked, RoHS-compliant, designed per IEC 60529 (IP66), suitable for GLP-aligned routine QC |
| Brand | Lohan |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | LH-A420 |
| Digestion Method | Rapid Digestion |
| Heating Module | Integrated Ceramic-Heated Aluminum Block |
| Batch Capacity | 20 samples |
| Temperature Range | Ambient to 190 °C |
| Temperature Accuracy | ≤ ±0.5 °C |
| Sample Volume Capacity | 0–10 mL |
| Timer Drift | ≤ 0.2 s per 60 min |
| Brand | LoHAN |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Product Category | Domestic |
| Model | LH-E200 |
| Instrument Type | Portable / Handheld Water Quality Analyzer |
| Measurable Parameters | COD (Chemical Oxygen Demand), Ammonia-Nitrogen (NH₃-N), Conductivity, pH, ORP (Oxidation-Reduction Potential), Dissolved Oxygen (DO), Turbidity, Phycocyanin (Cyanobacteria), Chlorophyll-a, Suspended Solids (SS), Total Dissolved Solids (TDS), Salinity, Temperature |
| Brand | Lohan |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Regional Category | Domestic (China) |
| Model | LH-OIL330 |
| Instrument Type | Laboratory Benchtop Analyzer |
| Measurement Principle | UV Absorption Spectrophotometry (225 nm) per HJ 970–2018 |
| Measurement Range | 0.04–100 mg/L |
| Detection Limit | 0.01 mg/L |
| Accuracy | ≤10% RSD |
| Resolution | 50,000 ppm (equivalent to 0.002 mg/L at full scale) |
| Analysis Cycle Time | 35 min per sample |
| Compliance | HJ 970–2018, GB/T 16488–1996 (replaced), ISO 9377-2:2000 (referenced for petroleum hydrocarbon quantification) |
| Sample Throughput | Single-sample batch mode with integrated extraction |
| Brand | Lohan |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Manufacturer |
| Country of Origin | China |
| Model | LH-P3SD |
| Pricing | Available Upon Request |
| Brand | LoHAN Tech |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | OEM/ODM Manufacturer |
| Country of Origin | China |
| Model | 5B-6C(V12) |
| Instrument Type | Laboratory Water Quality Analyzer |
| Measurable Parameters | COD, Ammonia Nitrogen (NH₃-N), Total Phosphorus (TP), Total Nitrogen (TN), Turbidity, Color, Suspended Solids (SS) |
| Optical System | Dual-path interference-free photometric system supporting both cuvette and tube colorimetry |
| Integrated Digestion Unit | Yes, with intelligent temperature ramping, programmable timing, and thermal overprotection |
| Display | 5.6-inch full-color capacitive touchscreen |
| Data Storage Capacity | 16,000 measurement records |
| Connectivity | USB port + infrared data transmission |
| Built-in Thermal Printer | Yes |
| Calibration | Automated standard curve generation and storage using certified reference standards |
| Compliance | HJ/T 399–2007 (Rapid Digestion Spectrophotometric Method for COD), JJG 975–2002 (Verification Regulation for COD Analyzers) |
| Brand | Lohan Tech |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | LH-A230 |
| Pricing | Upon Request |
| Digestion Method | Rapid Digestion |
| Heating Module | Dual Independent Heating Blocks |
| Batch Capacity | 30 Samples (15 per zone) |
| Temperature Range | 45–190 °C (user-adjustable in 1 °C increments) |
| Temperature Accuracy | ±0.5 °C |
| Sample Vial Capacity | 0–10 mL |
| Timer Drift | ≤0.2 s per 10 min |
| Brand | Lohan Tech |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | LH-BOD301 |
| Instrument Type | Laboratory BOD Analyzer |
| Measurement Principle | Manometric Pressure-Difference Method |
| Measurement Range | 0–4000 mg/L |
| Detection Limit | 0.1 mg/L |
| Accuracy | ±0.1 mg/L (for BOD < 10 mg/L) |
| Incubation Duration | 1–30 days |
| Repeatability | ±10% |
| Compliance | HJ 505–2009 (China), ISO 9408:1999 |
| Power Supply | Integrated CR-P2 Lithium Battery (Test Cap Unit) |
| Display | 1.5-inch OLED |
| Data Storage | 100 test records (auto-overwrite) |
| Connectivity | Bluetooth-enabled mobile app integration |
| Brand | Lohan Tech |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Regional Classification | Domestic (China) |
| Model | LH-S600 |
| Instrument Type | Laboratory Benchtop Analyzer |
| Measurement Principle | Infrared Spectrophotometry (C–H Stretch Absorption at 2930 cm⁻¹, 2960 cm⁻¹, and 2850 cm⁻¹) |
| Measurement Range | 2–800 mg/L |
| Detection Limit | 0.5 mg/L |
| Accuracy | ±1% (for concentrations >10 mg/L) |
| Resolution | 0.1 mg/L |
| Measurement Cycle | 45 s per full-spectrum scan |
| Brand | Lohand |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | LH-T3NHN |
| Instrument Type | Laboratory Benchtop Analyzer |
| Measurement Principle | Colorimetric Method (Nesslerization or Salicylate, per HJ 535–2009) |
| Measurement Range | 0–160 mg/L NH₃–N (multi-range segmented calibration) |
| Accuracy | ≤ ±8% of reading (at mid-range, per HJ 535–2009 validation protocol) |
| Display | 3.5-inch high-resolution color TFT LCD with analog-style UI |
| Light Source | Long-life cold LED source with narrow-band interference optical filtering (rated lifetime ≥100,000 hours) |
| Data Storage | Internal non-volatile memory for up to 5,000 measurement records (timestamp + numeric result) |
| Sample Vessels | Compatible with both 16-mm round glass cuvettes and 10-mm square quartz or optical-grade plastic cuvettes |
| Calibration Options | 15 pre-programmed calibration curves |
| Compliance | Designed and validated in accordance with HJ 535–2009 “Determination of Ammonia Nitrogen in Water—Nessler Reagent Spectrophotometric Method” |
| Brand | Lohand |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | LH-A116 |
| Pricing | Upon Request |
| Digestion Method | Rapid Digestion |
| Heating Module | Single Aluminum Block Heater |
| Batch Capacity | 16 Samples |
| Temperature Range | 40–190 °C (User-Adjustable) |
| Temperature Accuracy | ±0.5 °C |
| Sample Volume Capacity | 0–10 mL |
| Timer Drift | ≤0.2 s/hour |
| Brand | Lohand |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | LH-A220 |
| Pricing | Upon Request |
| Digestion Method | Rapid Digestion |
| Heating Module | Dual Independent Heating Blocks |
| Batch Capacity | 20 Samples |
| Temperature Accuracy | ±0.5 °C |
| Sample Volume Range | 0–10 mL |
| Timer Drift | ≤0.2 s/hour |
| Brand | Lohand |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | LH-BOD312 |
| Instrument Type | Benchtop Laboratory BOD Analyzer |
| Measured Parameter | Biochemical Oxygen Demand (BOD₅) |
| Detection Principle | Dissolved Oxygen Depletion Method (Standard 5-Day Incubation per ISO 5815-1:2019 & ASTM D5210) |
| Brand | Lohand |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | LH-E4ISE |
| Pricing | Available Upon Request |
| Instrument Type | Laboratory-Based Water Quality Analyzer |
| Detection Principle | Electrochemical Method |
| Brand | Lohand |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Manufacturer |
| Product Category | Domestic |
| Model | LH-P3SI |
| Instrument Type | Portable |
| Compliance Standard | GB/T 12149–2017 Industrial Circulating Cooling Water and Boiler Water — Determination of Silicon |
| Brand | Lohand |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | LH-P3SS |
| Instrument Type | Portable |
| Display | 3.5-inch color TFT LCD with dial-style UI |
| Battery | Rechargeable lithium-ion, up to 8 hours continuous operation under typical field conditions |
| Calibration | Optical intensity calibration supported |
| Calibration Curves | 5 built-in calibration curves for turbidity-to-SS correlation |
| Measurement Limit Indication | Visual upper-limit alert (red highlight) on dial interface |
| Data Output | Concentration directly displayed in mg/L (ppm) units |
| Brand | Lohand |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Regional Classification | Domestic (China) |
| Model | LH-SF10 |
| Instrument Type | Laboratory Benchtop Filtration System |
| Vacuum Pump Type | Oil-Free Electromagnetic Piston Pump |
| Max. Simultaneous Samples | 6 |
| Filtration Capacity per Cup | 300 mL |
| Filter Membrane Diameter Options | 47 mm or 50 mm |
| Operating Noise Level | < 50 dB(A) |
| Construction Material | 304 Stainless Steel |
| Chemical Resistance | Acid- and Alkali-Resistant Design |
| Lubrication | Fully Oil-Free Operation |
| Continuous Duty Rating | 24/7 Stable Operation |
| 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 | LoHua |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | LH-3BA(V12) |
| Instrument Type | Laboratory Water Quality Analyzer |
| Measurable Parameters | COD, Ammonia Nitrogen, Total Phosphorus, Total Nitrogen, Turbidity, Colority, Suspended Solids (SS), Heavy Metals, Organic Pollutants, Inorganic Pollutants |
| Calibration Compliance | JJG-178 Class II Requirements for UV-Vis-NIR Spectrophotometers |
| Optical System | Imported Holographic Grating, Low Stray Light Design |
| Cuvette Compatibility | 10 mm, 20 mm, 30 mm Rectangular Cuvettes & φ16 mm Round Tubes |
| Light Sources | Plug-in Tungsten & Deuterium Lamps (Optical Alignment-Free Replacement) |
| Wavelength Switching | Dual-Wavelength UV Auto-Switching (for Total Nitrogen) |
| Preloaded Methods | 74 Measurement Modes, 360 Calibration Curves (277 Standard + 83 Fitted) |
| Data Storage | 12,000 Sample Records with Timestamp, Review, Thermal Printing & USB Export |
| Display | 7-inch Full-Color Touchscreen, Chinese UI |
| Optional Accessory | 30-Position Dual-Zone Multi-Parameter Digestion Unit (Independent Temperature Control per Zone) |
| Brand | LoHua |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | LH-6F |
| Pricing | Upon Request |
| Digestion Method | Reflux Digestion |
| Heating Module | Black Crystal Heated Panel (Independent Zone Control) |
| Batch Capacity | 6 Samples |
| Temperature Range | Ambient to 400 °C |
| Temperature Accuracy | ±2 °C |
| Sample Vial Capacity | 0–10 mL |
| Timer Drift | ≤0.2 s/hour |
| Brand | LoHua |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | LH-C500 |
| Instrument Type | Laboratory Water Quality Analyzer |
| Measurable Parameters | Chemical Oxygen Demand (COD), Ammonia Nitrogen (NH₃-N), Total Phosphorus (TP), Total Nitrogen (TN), Suspended Solids (SS), Color, Turbidity, Heavy Metals, Organic Pollutants, Inorganic Pollutants |
| Compliance Standards | COD per HJ/T 399–2007, NH₃-N per HJ 535–2009, TP per GB 11893–1989 |
| Display | 7-inch IPS touchscreen (1024 × 600), adjustable brightness, power-saving & screen-saver modes |
| Light Source | 8-channel visible LED array (fixed wavelengths) |
| Digestion Unit | Dual-zone 20-position heater (10+10 independent temperature zones), 45–190 °C adjustable |
| Timer Range | 1–600 minutes |
| Sample Holders | Compatible with 16/25 mm cuvettes and 10/30 mm cells |
| Calibration | 960 built-in calibration curves |
| Customization | 20 user-defined test methods (wavelength selection from 8 options, curve assignment, cell/tube mode) |
| Connectivity | Wi-Fi, IoT-enabled, Android-based LHOS operating system |
| Accessories Included | Pre-formulated reagent kits (COD, NH₃-N, TP, TN), sealed digestion tubes, cooling rack, tube/cell holders, calibrated pipettes, volumetric dispensers, thermal printer paper |
| Brand | LoHua |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | LH-C600 |
| Instrument Type | Portable / Handheld Water Quality Analyzer |
| Detection Parameters | COD, Ammonia Nitrogen, Total Phosphorus, Total Nitrogen, Turbidity, Color, Suspended Solids, Heavy Metals, Organic & Inorganic Contaminants |
| Compliance Standards | HJ/T 399–2007 (COD), HJ 535–2009 (Ammonia Nitrogen), GB 11893–1989 (Total Phosphorus) |
| Operating System | LHOS (Android-based) |
| Light Sources | 8 LED sources (visible spectrum, fixed wavelengths) |
| Digestion Unit | Integrated dual-zone 12-position heater (6+6), supporting 16 mm / 25 mm tubes and 10 mm / 30 mm cuvettes |
| Power Supply | Rechargeable lithium battery (≥8 h continuous operation off-grid) |
| Connectivity | 4G, Wi-Fi, GNSS (BeiDou, GPS, GLONASS, Galileo) |
| Calibration | User-definable multi-point/single-point curve calibration with auto-log and recall |
| Customization | 20 user-defined test methods |
| Brand | LoHua |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | LH-C700 |
| Instrument Type | Portable / Handheld Water Quality Analyzer |
| Measurable Parameters | COD, Ammonia Nitrogen, Total Phosphorus, Total Nitrogen, Heavy Metals, Organic Matter, Inorganic Ions, pH, Dissolved Oxygen (DO), Electrical Conductivity (EC), Oxidation-Reduction Potential (ORP), Turbidity |
| Regulatory Compliance | HJ/T 399–2007 (COD), HJ 535–2009 (Ammonia Nitrogen), GB 11893–1989 (Total Phosphorus), HJ 506–2009 (Dissolved Oxygen) |
| Brand | LoHua |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | LH-E600 |
| Instrument Type | Portable / Handheld Water Quality Analyzer |
| Detection Principle | Electrochemical Sensing (pH, DO, EC, ORP), Optical Absorption (COD, NH₃-N), Nephelometry (Turbidity), Fluorometry (Chlorophyll-a, Phycocyanin), Light Scattering (SS, Algal Density) |
| Measured Parameters | pH, Dissolved Oxygen (DO), Electrical Conductivity (EC), Salinity, Total Dissolved Solids (TDS), Oxidation-Reduction Potential (ORP), Turbidity, Chemical Oxygen Demand (COD), Ammonia Nitrogen (NH₃-N), Chlorophyll-a, Phycocyanin (Blue-Green Algae), Suspended Solids (SS) — 12 Parameters |
| pH Range | 0–14 |
| Default Cable Length | 5 m (customizable) |
| Display | 10-inch capacitive touchscreen integrated into carrying case lid |
| Data Storage | 22,720 entries per parameter |
| Power Supply | Rechargeable Li-ion battery + AC 220 V adapter (auto-switching) |
| Communication | USB, RS-485, 4G LTE dual-mode |
| Positioning | Dual-frequency GPS/BeiDou GNSS module |
| Optional | 720p HD camera for field documentation |
| Brand | LoHua |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Regional Category | Domestic (China) |
| Model | LH-F510 |
| Pricing | Upon Request |
| Digestion Method | Reflux Digestion |
| Heating Module | Single Aluminum Heating Block |
| Batch Capacity | 10 Samples |
| Temperature Range | Ambient to 350 °C |
| Brand | LoHua |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Product Category | Domestic |
| Model | LH-JE113 |
| Instrument Type | Benchtop Laboratory Water Quality Analyzer |
| Detection Principle | Colorimetric and Electrochemical Measurement (Standard Method Compliant) |
| Brand | LoHua |
|---|---|
| Origin | Beijing, China |
| Manufacturer | LoHua Technology Co., Ltd. |
| Instrument Type | Benchtop Laboratory Water Quality Analyzer |
| Detection Principle | Spectrophotometry |
| Primary Application | Oil-in-Water Quantification |
| Compliance Context | Designed for routine compliance testing per ISO 7027, EPA Method 1664 (modified), and GB/T 16488–1996 |
| Brand | LoHua |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Manufacturer |
| Product Category | Domestic |
| Model | LH-S760 |
| Instrument Type | Laboratory Water Quality Analyzer |
| Detection Methods | Photometry (Visible & UV), Electrochemical Analysis |
| Wavelength Range | 190–1100 nm |
| Electrode Support | 14 parameters |
| Photometric Parameters | >60 |
| Display | 10-inch HD capacitive touchscreen |
| Data Storage | ≥100,000 records (16 GB internal memory) |
| Input/Output | HDMI output, Wi-Fi, USB, optional printer support |
| Operating System | LHOS (Android-based) |
| Compliance | Designed for ISO 7027, ISO 8466-1, ASTM D1253, EPA 365.3, USP <643>, and GLP/GMP-aligned data integrity workflows |
| Brand | LoHua |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Manufacturer |
| Product Category | Domestic |
| Model | LH-S780 |
| Instrument Type | Laboratory Water Quality Analyzer |
| Detection Parameters | COD, Ammonia Nitrogen, Total Phosphorus, Total Nitrogen, Conductivity, Photometric Measurement, Quantitative Analysis, Kinetic Analysis, Wavelength Scanning, Multi-Wavelength Analysis, UV-Based Total Nitrogen, Electrochemical Measurement |
| Optical Range | 190–1100 nm |
| Display | 10-inch HD capacitive touchscreen (Android-based LHOS) |
| Data Storage | 16 GB internal memory (≥100,000 records) |
| Connectivity | Wi-Fi, IoT-enabled, HDMI output |
| Compliance | JJG-178–2007 Class II spectrophotometer specification |
| Electrode Interface | Digital IP68-rated electrodes with temperature compensation and independent calibration |
| Cuvette Compatibility | 1–4-position automated cuvette holder (1–5 cm pathlength), φ16 mm tube measurement |
| Light Sources | Replaceable tungsten and deuterium lamps (socket-mounted, no optical realignment required) |