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Tianjin Sepu Environmental Protection Technology Development Co., Ltd.

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BrandSipo Environment
OriginTianjin, China
ModelOilTech221
Instrument TypePortable
Measurement PrincipleUV Absorption Spectrophotometry at 225 nm
Measurement Range0–60 mg/L
Detection Limit0.01 mg/L
Accuracy±2%
Resolution1 nm
WavelengthFixed 225 nm monochromatic
Light SourceDFB semiconductor laser (225 nm)
DetectorMSM photodetector
Stray Light≤0.1% T
Baseline Stability±0.002 A/h
Calibration OptionsSingle-point, multi-point (1–6 points), certified reference material-based
Preloaded Calibration Curves≥10
Extraction UnitHandheld, 3-speed adjustable
FiltrationDisposable magnesium silicate cartridge
PowerDual rechargeable Li-ion batteries, 8 h continuous operation
Display5.5-inch capacitive touchscreen
Data ExportUSB interface
ComplianceHJ 970–2018 (China)
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BrandSipo Environment
OriginTianjin, China
ModelOIL-UV-2100
Measurement PrincipleUV Spectrophotometry
Measurement Range0–80 mg/L
Detection Limit0.005 mg/L
Accuracy<2%
Wavelength Resolution1 nm
Sample Measurement Time15 s per sample
Wavelength Range190–1100 nm
Wavelength Accuracy±1 nm
Wavelength Repeatability0.2 nm
Spectral Bandwidth2 nm
Absorbance Range−0.30 to 3.0 A
Absorbance Repeatability (RSD)≤1%
Correlation CoefficientR > 0.999
Transmittance Accuracy±0.3% T
Stray Light≤0.2% T
Baseline Drift±0.002 A/h
Extraction Methodn-Hexane Extraction (Compliant with HJ 970–2018)
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BrandSipo Environment
OriginTianjin, China
ModelBODAuto™1000
Instrument TypeLaboratory BOD Analyzer
PrincipleDissolved Oxygen (DO) Depletion Method (Standard 5-day Incubation)
Measurement Range2–6000 mg/L
Detection Limit< 0.5 mg/L
Accuracy±0.1 mg/L (for 0–20 mg/L range)
Single-Sample Measurement Time< 30 s (at 25°C, 90% response)
Repeatability< 0.1 mg/L
Sample Capacity18 positions
DO ElectrodeImported German electrochemical sensor (0–20.00 mg/L, 0–200.0 % saturation
resolution0.01 mg/L / 0.1 %)
Temperature Compensation0–45 °C
Salinity Compensation0–45 ppt
Barometric Pressure Compensation80–105 kPa
Peristaltic Pump Flow Rate1.2 L/min
Incubation Vessel300 mL borosilicate glass bottle with water-seal PVC cap
Positioning Accuracy< 0.1 mm (Hall-effect servo feedback)
Motor SystemMOONS (Japan) stepper-servo motors
Power SupplyAC 220 V, 50 Hz
Power Consumption350 W
Dimensions (W×D×H)1000 × 420 × 500 mm
WeightApprox. 48 kg
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BrandSipo Environment
OriginTianjin, China
ModelBOD-220A-2
Instrument TypePortable BOD Analyzer
Measurement PrincipleMicrobial Membrane Electrode Method
Measuring Range2–4000 mg/L
Sample Measurement Time8 min
RSD≤5%
Temperature Control Accuracy±0.1°C
Power SupplyAC 110–220 V / DC 12 V (automotive cigarette lighter compatible)
Dimensions260 × 400 × 180 mm
Weight~12 kg
Power Consumption<50 W
Operating Ambient Temperature5–40°C
Sensor ConfigurationIntegrated 3-electrode microbial sensor with reference electrode (Patent ZL 00 257536.1)
Incubation SystemReflective thermostatic chamber with heating/cooling (Patent ZL 01 267798.1)
Microbial MembraneDry-layer immobilized BOD₅-specific strain (InterBio™, EPA-certified)
Membrane Shelf Life>12 months (dry storage at room temperature)
Sample Volume Required>20 mL
Buffer Consumption150 mL/h
Data Storage Capacity99 test records
InterfaceExternal thermal mini-printer support
Inlet ModePeristaltic pump-driven continuous flow
HousingLightweight extruded aluminum frame with shock-absorbing mounting
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BrandEnviron Lab
OriginUSA
ModelBODTECH-8
Instrument TypeLaboratory BOD Analyzer
Measurement PrincipleMercury-Free Pressure-Based Dissolved Oxygen Consumption Detection (Piezoelectric Crystal Sensor)
Measurement Range0–4000 mg/L (extendable to 5000 mg/L)
Accuracy±1 mg/L (±3.55 hPa)
Operating Pressure Range500–1100 hPa
Temperature CompensationAutomatic, Real-Time
Stirring Speed180–450 rpm
IP RatingIP54
Ambient Operating Temperature+5°C to +50°C
Power SupplyButton-Cell Lithium Battery
Max Concurrent Samples4 × n (modular 4-bottle units)
Display2-Digit 7-Segment LED
Sample HandlingUndiluted, Direct Measurement
Stirring ConfigurationElectromagnetic, Continuous
Data LoggingDaily Automated BOD Value Capture and Storage
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BrandSipo Environment
OriginTianjin, China
Manufacturer TypeAuthorized Distributor
Product CategoryDomestic
ModelSPN-BOD-220A
Instrument TypeLaboratory BOD Analyzer
Measurement PrincipleMicrobial Electrode Method
Measurement Range2–4000 mg/L
Detection Limit0.5 mg/L
Accuracy±1 mg/L
Single-Sample Analysis Time8 min
Repeatability≤3%
Power SupplyAC 220 V ±10%, 50 Hz
Operating Temperature10–35 °C
Humidity Range30–85% RH (non-condensing)
Dimensions (W×D×H)420 × 380 × 260 mm
Weight12.5 kg
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BrandEnviron Lab
OriginUSA
ModelChloroTech121A
Detection PrincipleDual-Channel UV-Induced Fluorescence
Weight<500 g
Protection RatingIP67
Power Supply4 × AAA batteries (≥1000 measurements per set)
CalibrationIntegrated reference module
Sample FormatDisposable cuvettes
Measurement ModesLive chlorophyll a, Extracted chlorophyll a, Turbidity (any two simultaneously)
ComplianceDesigned for field-deployable environmental monitoring per EPA Method 445.0 and ISO 10260:2021
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BrandSipo Environment
OriginTianjin, China
ModelBODAuto™2200
BOD₅ Measurement Range2–6000 mg/L
Detection Limit< 0.5 mg/L
Accuracy±0.1 mg/L (0–20 mg/L)
Single-Sample Measurement Time< 30 s (at 25 °C, 90% response)
Repeatability< 0.1 mg/L
DO Electrode Range0–20.00 mg/L (ppm) / 0–200.0 % saturation
DO Resolution0.01 mg/L / 0.1 %
Response Time (DO)≤30 s (25 °C, 90% response)
Temperature Compensation0–45 °C
Salinity Compensation0–45 ppt
Barometric Pressure Compensation80–105 kPa
Peristaltic Pump Flow Rate1.2 L/min
Syringe Pump Volume Range0–100 mL
Syringe Pump Accuracy±0.3 %
Sample Vial Capacity300 mL
Sample Tray Configuration3 × 6 positions (18 per tray), total 54 positions
Positioning Accuracy< 0.1 mm (Hall-effect sensor-based servo control)
Power SupplyAC 220 V, 50 Hz
Host Power Consumption350 W
Dimensions (W×D×H)1500 × 650 × 650 mm
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BrandSipo Environment
OriginTianjin, China
ModelOIL-IR-2100
Instrument TypeLaboratory Benchtop Analyzer
PrincipleInfrared Absorption Spectrophotometry (Triple-Wavelength Method)
Measurement Range0–800 mg/L
Detection Limit0.02 mg/L
Accuracy<1% RSD
Spectral Resolution1 cm⁻¹
Scan SpeedFull-spectrum scan in 30 s
Operating SystemEmbedded Windows 10 (10.0-inch touchscreen tablet)
ConnectivityBluetooth 4.2, USB 3.0, RS-232/RS-485
Optical SourceElectrically Modulated IR Source (Lifespan ≥5000 h)
Housing MaterialABS with EMI shielding, impact-resistant and corrosion-resistant finish
Baseline StabilityReal-time zero-point auto-adjustment (dual-signal acquisition: light-on & light-off)
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BrandSipo Environment
OriginTianjin, China
ModelOIL-IR-BX
Instrument TypePortable
Measurement PrincipleInfrared Spectrophotometry
Measurement Range0–150 mg/L
Detection Limit0.02 mg/L
Accuracy< ±1%
Spectral Resolution1 cm⁻¹
Full-Spectrum Scan Time30 s per sample
RepeatabilityRSD ≤ 1% (20–100 mg/L oil standard, n = 11)
Correlation CoefficientR > 0.999
Net Weight10 kg
Dimensions450 × 320 × 150 mm
Operating SystemWindows XP or later
Integrated Control UnitIndustrial-grade all-in-one PC with 8-inch display
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BrandSipo Environment
OriginTianjin, China
ModelSP480
Instrument TypeLaboratory Benchtop Analyzer
Measurement PrincipleInfrared Absorption Spectrophotometry (Triple-Wavenumber Method)
Wavenumber Range3400–2400 cm⁻¹
Wavenumber Accuracy±1 cm⁻¹
Wavenumber Repeatability<±1 cm⁻¹
Baseline Drift≤0.005 AU/60 min
Absorbance Range0.0000–2.0000 AU
Transmittance Accuracy±0.5% T
Linearity Correlation Coefficientr > 0.999
Measurement Accuracy<±5% (5–80 mg/L, 4-cm cell)
Repeatability (RSD)<2% (5–80 mg/L, 4-cm cell)
Detection Limit0.2 mg (absolute, 4-cm cell, standard oil)
Minimum Detectable Concentration0.002 mg/L (4-cm cell, 100× extraction enrichment)
Maximum Measurable Concentration64,000 mg/L (0.5-cm cell, 100× dilution)
Scan Time30 s (full spectrum), <2 s (non-dispersive mode)
Zero Stability±0.5 AU/60 min
Power SupplyAC 220 V ±10 V, 50/60 Hz, 70 W
Operating Environment0–35 °C, 10–90% RH
Dimensions450 × 240 × 100 mm
Weight10 kg
ComplianceGB/T 16488–1996, GB 18483–2001
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BrandSipo Environment
OriginTianjin, China
ModelOILAutoTM-UV-8/10/12/14
Instrument TypeLaboratory-Based
PrincipleUV Spectrophotometry (225 nm)
Measurement Range0–60 mg/L
Detection Limit0.005 mg per measurement (equivalent to 0.001 mg/L at 1 L sample volume)
Accuracy±2% of full scale
Wavelength Resolution1 nm
Optical SystemCzerny-Turner monochromator with holographic grating
Light SourcesDeuterium lamp (190–350 nm), Tungsten lamp (350–1100 nm)
Absorbance Range–0.30 to 3.0 A
Spectral Bandwidth1.8 nm
Wavelength Accuracy±1 nm
Linearity (R²)>0.999
Sample Throughput≤8 min per sample (including extraction, phase separation, adsorption cleanup, and photometric measurement)
Sample Volume100–700 mL (user-selectable)
Extraction SolventHPLC-grade n-hexane (transmittance ≥90% at 225 nm)
Sample Capacity6–14 positions (configurable sequence, infinite loop mode supported)
Separation MethodThree-stage: liquid–liquid extraction → separation tube phase separation → hydrophobic membrane dehydration
Adsorbent CleanupAutomated MgSiO₃ cartridge exchange with reverse-flush regeneration
ComplianceHJ 970–2018 “Determination of Petroleum Hydrocarbons in Water by Ultraviolet Spectrophotometry”
SoftwareWindows-compatible (XP and later), FDA 21 CFR Part 11–ready audit trail, GLP/GMP-compliant data handling, report export to PDF/Word/Excel
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BrandEnviron Lab
OriginUSA
ModelChloroTech 121
Detection PrincipleUV-Induced Fluorescence
Measurement ModesDual-Channel (Live Chlorophyll a + Turbidity)
Weight<500 g
Power Supply4 × AAA batteries (≥1000 measurements per set)
Ingress ProtectionIP67
CalibrationIntegrated on-board calibration module
ConsumablesDisposable cuvettes (13 mm pathlength, polystyrene)
ComplianceASTM D3921–22 (Standard Practice for Determination of Chlorophyll a in Water by Fluorometric Method), ISO 10260:2021 (Water Quality — Determination of Chlorophyll a — Fluorometric Method)
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BrandSipo Environment
OriginTianjin, China
ModelDR8800
Instrument TypeBenchtop Laboratory Analyzer
Detection PrincipleRapid Closed-Vessel Catalytic Digestion Coupled with Dual-Wavelength Photometry (440 nm & 600 nm)
Detection Range10–250 mg/L (Low Range), 100–2500 mg/L (High Range)
LOD3 mg/L
Accuracy±5% (Low Range), ±4% (High Range)
RepeatabilityRSD ≤2% (5–100 mg/L)
Chloride Interference Tolerance≤2000 mg/L Cl⁻
Wavelengths440 nm (low-range), 600 nm (high-range)
Optical Stability≤0.001 A/60 min
Data Storage9999 measurements, 99 calibration curves
Power Supply220 V AC, 50 Hz
Operating Temperature5–40 °C
Dimensions (DR8800)Not specified
Weight (DR8800)Not specified
Complies WithHJ/T 399–2007
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BrandSipo Environment
OriginTianjin, China
ModelBODAuto-2100
Instrument TypeLaboratory BOD Analyzer
PrincipleDissolved Oxygen (DO) Method (5-Day Incubation)
Measurement Range2–6000 mg/L
Detection Limit0.1 mg/L
Accuracy±5%
Single-Sample Measurement Time<60 s
Reproducibility±0.1 mg/L (per 54-bottle batch)
DO Electrode Range0–20.00 mg/L
DO Resolution0.01 mg/L
DO Response Time≤30 s (90% at 25 °C)
Temperature CompensationAutomatic (0–45 °C)
Salinity CompensationAutomatic (0–45 ppt)
Barometric Pressure CompensationAutomatic (80–105 kPa)
Sample Capacity54 positions per tray, modular multi-tray support
Power SupplyAC 220 V, 50 Hz, 350 W
Dimensions1500 × 650 × 650 mm
Operating Environment5–45 °C, non-corrosive atmosphere
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BrandEnvironmental Express
OriginUSA
ModelHotBlock® TKN Series
Temperature RangeAmbient to 450°C
Configurations28-position or 54-position
Heating Block Material316 Stainless Steel
Controller TypeOptional Advanced Touchscreen (up to 8 preloaded methods, 20-step programmable ramping)
Power Supply240 VAC, 50/60 Hz
ComplianceDesigned for ASTM D5179, EPA 351.2, ISO 11905-1, and USP <467> residual nitrogen workflows
Sample Tube CompatibilityStandard threaded digestion tubes compatible with SimpleDist® distillation systems
Safety DesignController mounted externally to fume hood
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BrandSipo Environment
OriginTianjin, China
ModelOILAutoTM-IR-8 / IR-10 / IR-12 / IR-14
Instrument TypeLaboratory-Based
PrincipleInfrared Spectrophotometry (Triple-Wavenumber Method)
Measurement Range0.01–100 mg/L
Detection Limit0.01 mg/L
Accuracy< ±1%
Spectral Resolution1 cm⁻¹
Sample Throughput6–12 min per sample (including extraction)
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BrandSipo Environment
OriginTianjin, China
ModelOIL-IR-3100
Instrument TypeLaboratory Benchtop Analyzer
Measurement PrincipleInfrared Absorption Spectrophotometry (Fourier-transform-free, Dispersive Optical Path)
Measurement Range0–600 mg/L
Detection Limit0.1 mg/L (instrument)
Accuracy≤ ±1% (absolute error at 100 mg/L CH, 20 mg/L CH₂/CH₃)
Wavenumber Resolution0.5 nm (equivalent to ~0.3 cm⁻¹ in mid-IR region)
Wavenumber Repeatability±0.01 cm⁻¹
Absorbance Range0.00000–200000 A (logarithmic scale, Lambert–Beer compliant)
Scan SpeedFull-spectrum acquisition in ≤90 s per sample
Wavenumber Range2400–3400 cm⁻¹ (2941–4167 nm)
Cell Pathlength4 cm quartz cuvette
Certified ComplianceHJ 637–2018, HJ 1077–2019, GB 18483–2001
Software FeaturesTriple-wavenumber algorithm (2930, 2960, 3030 cm⁻¹), automatic unit conversion, built-in calibration coefficient matrix (X, Y, Z, F), no standard curve required for quantification
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BrandEnviron Lab
OriginUSA
ModelOilTech121
Instrument TypePortable
Measurement PrincipleUV-Induced Fluorescence Spectrophotometry
Measurement Range0–1000 ppm and 50 ppb–50 ppm (dual-range)
Detection Limit<5 ppb
Accuracy±5% of reading
Resolution1 ppb
Measurement Frequency60 tests/hour
Measurement Time≤5 seconds per test
DisplayBacklit LCD
Operating Temperature5–40 °C
Auto Power-OffAfter 3 minutes of inactivity
Dimensions195 × 100 × 70 mm
Weight500 g (including batteries)
Power Supply4 × AAA alkaline batteries (>1000 tests per set)
Enclosure RatingIP67
ComplianceEPA Method 1664A-compatible solvent usage (e.g., n-hexane), ASTM D7678 referenced
Sample VesselDisposable quartz-cuvette-style microcell (1.5 mL volume)
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BrandSipo Environment
OriginTianjin, China
ModelBOD-220B Main Unit
Instrument TypeLaboratory BOD Analyzer
Measurement PrincipleFlow-through Microbial Electrode Method
Measurement Range2–4000 mg/L
Detection Limit2–4000 mg/L
Accuracy≤3%
Single-sample Analysis Time8 min
Repeatability±2%
Sensor ConfigurationIntegrated Triple-electrode Sensor with Reference Electrode
Sample Volume Requirement>40 mL
Temperature Control Precision±0.1°C
Buffer Consumption270 mL/h
Dimensions540 × 370 × 225 mm
Weight~18 kg
Power SupplyAC 220 V, 50 Hz
Communication InterfaceRS-232 (expandable for automated sampler integration)
Data Storage Capacity99 test records
Built-in Thermal PrinterYes
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BrandEnviron Lab
OriginUSA
ModelMultipro
Instrument TypePortable/Handheld Water Quality Analyzer
Measurable ParametersDepth, Temperature, Turbidity, Dissolved Oxygen (DO), pH/ORP, Conductivity (Salinity, Total Dissolved Solids), Chlorophyll-a, Phycocyanin (Blue-Green Algae), Oil-in-Water, Ammonia-Nitrogen*, COD (UV254)*
IP RatingIP67
Maximum Submersion Depth250 m
Probe InterchangeabilityUser-replaceable in field without tools
Modular ArchitectureIndependent housing for battery compartment and electronics
Operating ModesStandalone portable operation and fixed online deployment
Data StorageInternal memory for autonomous field station operation
Sensor CapacityUp to 7 simultaneous sensors
Housing MaterialPolyoxymethylene (POM) and titanium alloy
Temperature CompensationPT1000 sensor (±0.1 °C accuracy) across all compatible probes
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OriginGermany
Manufacturer TypeDistributor
Origin CategoryImported
ModelBioMonitor
Instrument TypeOnline BOD Analyzer
Measurement PrincipleDissolved Oxygen (DO)-Based Respirometric Method
Measurement Range1–50 mg/L and 1–200,000 mg/L BOD
Detection Limit1 mg/L
Accuracy±2% of reading within both ranges
Sample Interval3–4 minutes per measurement
Repeatability±2% RSD
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BrandSipo Environment
OriginTianjin, China
ModelBOD-220B
Instrument TypeLaboratory BOD Analyzer
Measurement PrincipleMicrobial Membrane Electrode Method
Measurement Range2–4000 mg/L
Detection Limit2 mg/L
Accuracy≤3%
Single-Sample Analysis Time8 min
Repeatability±2%
Sensor ConfigurationIntegrated Three-Electrode Sensor with Reference Electrode (Patent No.: ZL 00 257536.1)
Signal Output0–20 µA
Flow-Through Cell DesignCombined Flow Cell and Measurement Chamber
Microbial StrainEPA-certified InterBio BOD₅-specific strain
Membrane FormatDry-layer sandwich membrane, non-toxic and biocompatible
Membrane Shelf Life>12 months under ambient dry storage
Sample IntroductionFully automated via optional 24-position autosampler
Control SystemPC-based microprocessor control
Software PlatformWindows 95/98/2000/XP (localized Chinese GUI)
Operation ModesManual or fully automated sequential/jump sampling
Data HandlingAutomatic archival to internal database
Positioning SystemTriple-redundant mechanical, electromagnetic, and optical sample positioning
Sample Vial Capacity24 × 50 mL standard cups
Power ManagementScheduled auto-shutdown and electrode sleep mode for membrane preservation
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BrandLAR
OriginGermany
ModelToxAlarm
Instrument TypeOnline Water Toxicity Analyzer
Biological AgentNitrifying Bacteria
Measurement PrincipleOxygen Consumption Rate (Respirometry)
Toxicity Range0–100%
Response Time<5 minutes
Sample Preparation Time5–10 min
Enclosure RatingIP54
Dimensions (W×H×D)870 × 600 × 560 mm
Weight~70 kg
Power Supply230/115 V~, 50/60 Hz, 100 VA
Inlet/Outlet Tubing20 mm ID (6 × 1 mm & 4 × 1 mm auxiliary lines)
Analog Output0/4–20 mA
Serial InterfaceRS232 + USB
Remote AccessTCP/IP (Ethernet)
DisplayHigh-resolution backlit LCD touchscreen
ComplianceDesigned for continuous operation in drinking water and surface water monitoring per DIN EN ISO 11348 and ASTM D5905 respirometric toxicity testing principles
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