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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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OriginUSA
Manufacturer TypeAuthorized Distributor
Origin CategoryImported
ModelENV-6
PricingAvailable Upon Request
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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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BrandEnviron Lab
OriginUSA
ModelTCLP
Agitator Speed30 ± 2 rpm
Vessel Capacity2.0 L (non-volatile) / 550 mL (volatile, zero-headspace)
Filtration Pressure Rating≥50 psi
Filter Disc Diameter142 mm (non-volatile) / 90 mm (volatile)
Filter Pore Size0.7 µm (glass fiber) / 0.5 µm (stainless steel)
Construction Materials316 stainless steel (filtration unit), borosilicate glass & PE & PTFE-compatible vessels
pH AdjustmentManual in-situ capability
SafetyOverload protection, low-noise rotary drive, aluminum frame architecture
ComplianceDesigned for EPA Method 1311 (TCLP), ASTM D5233, ISO 11372
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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
ModelENV-12
Capacity12 sample vessels
Rotation Speed30 ± 2 rpm
Tumbling Angle30° ± 2°
Timer Range0.1–999.9 h
Vessel Volume1 L (standard HDPE or stainless-steel options)
ComplianceASTM D3987, EPA Method 1311 (TCLP), EPA Method 1312 (SPLP), ISO 14669
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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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OriginAustralia
Manufacturer TypeAuthorized Distributor
Origin CategoryImported
ModelEnvironodour
PricingAvailable Upon Request
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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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