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| Brand | Jilin University Xiaotian'e |
|---|---|
| Origin | Jilin, China |
| Manufacturer Type | Direct Manufacturer |
| Regional Category | Domestic (China) |
| Model | MAI-50G |
| Price Range | USD 1,400–7,000 |
| Instrument Type | Benchtop Laboratory Analyzer |
| Measurement Principle | Infrared Spectrophotometry (Dual-Wavelength Absorption at C–H Stretching Bands) |
| Measurement Range | 0.0–80.0 mg/L |
| Detection Limit | 0.2 mg/L |
| Accuracy | ≤1.5% RSD (at 10 mg/L) |
| Wavenumber Range | 3400–2400 cm⁻¹ |
| Absorbance Range | 0.0000–2.0000 Abs |
| Wavenumber Accuracy | ±2 cm⁻¹ |
| Wavenumber Repeatability | ±2 cm⁻¹ |
| Baseline Drift | ≤±0.005 Abs / 30 min |
| Operating Temperature | 5–35 °C |
| Linearity Correlation Coefficient | R > 0.999 |
| Power Supply | AC 220 V ±10%, 50–60 Hz |
| Brand | Jilin University–Xiaotian’e |
|---|---|
| Origin | Jilin, China |
| Manufacturer Type | Direct Manufacturer |
| Regional Category | Domestic (China) |
| Model | MAI-100G Infrared Oil Content Analyzer |
| 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 | 0.40–100 mg/L (using 4-cm pathlength cell, standard n-hexane extract, 1:1 extraction ratio) |
| Detection Limit | < 0.1 mg/L (per JJG 950–2012 verification protocol) |
| Accuracy | ±5% RSD (at 40 mg/L standard solution) |
| Compliance | HJ 637–2018, JJG 950–2012 Class A requirements, ASTM D7066–22 (equivalent IR methodology), ISO 9377-2:2000 (Water quality — Determination of hydrocarbon oil index — Part 2: Infrared spectrometric method) |
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