Protein Rapid Determinator
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| Brand | Gerhardt |
|---|---|
| Origin | Germany |
| Manufacturer | C. Gerhardt GmbH & Co. KG |
| Model | Vap300 |
| Principle | Kjeldahl Distillation (Steam Distillation) |
| Measurement Range | 0.01–100 mg N |
| Repeatability | ±1% |
| Detection Limit | 0.01 mg N |
| Recovery Rate | >99.5% |
| Power Supply | 230 V AC, 50/60 Hz |
| Power Consumption | 2200 W |
| Dimensions (W×D×H) | 440 × 340 × 690 mm |
| Weight | 34 kg |
| Cooling Water Requirement | 2–5 L/min |
| Sample Distillation Time | 2–4 min per sample |
| Steam Output Control | 10–100% programmable via software |
| Brand | JiDa-Xiaotian'e |
|---|---|
| Origin | Jilin, China |
| Manufacturer Type | Manufacturer |
| Region Category | Domestic (China) |
| Model | GDYN-200S |
| Product Type | True Protein Analyzer |
| Measurement Principle | Colorimetric Protein Assay (Biuret-based) |
| Measurement Range | 0.5–4.0% (liquid milk) |
| Detection Limit | 0.5% (liquid milk) |
| Precision | ±3% RSD |
| Light Source | Silicon Photodiode |
| Operating Temperature | 15–35 °C |
| Power Supply | 220 V AC, 50 Hz |
| Interface | RS-232 / USB |
| Data Output | Integrated thermal printer + digital export |
| Brand | LUM GmbH |
|---|---|
| Origin | Germany |
| Model | LUMiFlector |
| Application Principle | Near-Infrared and UV-Visible Multi-Reflection Spectroscopy (MRS®) |
| Measurement Time | <20 s (lab), <8 s (inline) |
| Sample Handling | Non-contact, no sample preparation, no reagents |
| Output Parameters | Up to 4 simultaneous quantitative attributes (e.g., fat, protein, dry matter, total solids) |
| Calibration | Product-specific multivariate calibration models |
| Interface | 4× 4–20 mA analog I/O, 4× 24 V digital outputs, VARINLINE® process housing (inline version) |
| Compliance Context | Designed for GLP/GMP-aligned QA/QC environments |
| Brand | Peiou |
|---|---|
| Origin | Shanghai, China |
| Model | SKD-100 |
| Principle | Kjeldahl Method |
| Nitrogen Range | 0.1–240 mg N |
| Repeatability | RSD ≤ 0.5% |
| Detection Limit | 0.1–240 mg N |
| Recovery Rate | >99.5% |
| Sample Capacity | ≤6 g (solid) or ≤16 mL (liquid) |
| Distillation Time | 3–8 min/sample |
| Distillation Flow Rate | 15–30 mL/min |
| Alkali Addition Time | 0–99 s |
| Distillation Duration Setting | 0–99 min |
| Power Adjustment | 0–1500 W |
| Data Storage | 10 programmable distillation/alkalization protocols |
| Safety Features | Real-time liquid-level monitoring, overpressure protection, dry-run prevention, emergency stop |
| Housing Material | Integrated ABS engineering plastic enclosure |
| Tubing | Acid- and alkali-resistant custom polymer tubing (≥3-year service life) |
| Dimensions | 370 × 300 × 680 mm |
| Net Weight | 15 kg |
| Power Supply | AC 220 V ±10%, 50 Hz |
| Water Supply | ≥0.15 MPa pressure, ≤20 °C inlet temperature |
| Brand | Peiou |
|---|---|
| Origin | Shanghai, China |
| Model | SKD-200 |
| Measurement Principle | Kjeldahl Method |
| Nitrogen Range | 0.1–240 mg N |
| Repeatability | ±0.5% RSD |
| Detection Limit | 0.1–240 mg N |
| Recovery Rate | >99.5% |
| Sample Capacity | ≤6 g (solid) or ≤16 mL (liquid) |
| Distillation Time | 3–8 min/sample |
| Distillation Flow Rate | 15–30 mL/min |
| Power Adjustment | 0–1500 W |
| Alkali Addition Time | 0–99 s (stepwise) |
| Acid Addition Time | 0–99 s |
| Distillation Duration Setting | 0–99 min |
| Data Storage | 10 programmable methods |
| Safety Features | Overpressure protection, dry-run prevention via real-time liquid level monitoring, emergency stop |
| Housing Material | Molded ABS engineering plastic (acid/alkali resistant) |
| Tubing | Custom corrosion-resistant polymer tubing (≥3-year service life) |
| Dimensions | 370 × 300 × 680 mm |
| Net Weight | 15 kg |
| Power Supply | AC 220 V ±10%, 50 Hz |
| Cooling Water Requirement | ≥0.15 MPa pressure, ≤20 °C inlet temperature |
| Brand | Peiou |
|---|---|
| Origin | Shanghai, China |
| Model | SKD-2000 |
| Principle | Kjeldahl digestion and distillation followed by colorimetric titration |
| Nitrogen Range | 0.1–240 mg N |
| Repeatability | RSD ≤ 0.5% |
| Detection Limit | 0.1–240 mg N |
| Recovery Rate | >99.5% |
| Distillation Time | 3–8 min/sample |
| Distillation Rate | 15–30 mL/min (adjustable) |
| Titration Resolution | 0.002 µL/step |
| Minimum Titration Volume | 0.8 µL/step |
| Sample Capacity | ≤6 g solid or ≤16 mL liquid |
| Alkali Addition | 1–10 segments, 0–15 s interval |
| Delay Time | 0–1800 s |
| Dimensions | 500 × 350 × 720 mm |
| Brand | Peiou |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | SKD-800 |
| Price Range | USD 1,400 – 7,200 (FOB) |
| Instrument Type | Protein Nitrogen Determinator |
| Measurement Principle | Classical Kjeldahl Method |
| Nitrogen Recovery Rate | >99.5% |
| Repeatability (RSD) | <0.5% |
| Detection Range | 0.08–240 mg N |
| Sample Capacity | ≤6 g solid or ≤16 mL liquid |
| Distillation Time | 1–99 min |
| Adjustable Distillation Power | 1500 W |
| Distillation Flow Rate | 15–30 mL/min |
| Data Storage | 100 pre-programmed methods + >1,000 sample records |
| Cooling Water Requirement | ≥1.5 L/min at ≤20 °C |
| Operating Pressure | ≥0.15 MPa |
| Dimensions (W×D×H) | 370 × 300 × 680 mm |
| Enclosure Material | Molded ABS engineering plastic |
| Brand | Top Cloud-agri |
|---|---|
| Origin | Zhejiang, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | KDN-08C |
| Product Category | Protein Determinator |
| Measurement Principle | Kjeldahl Method |
| Brand | VELP |
|---|---|
| Origin | Italy |
| Model | SER158 |
| Application Category | Fully Automated Protein and Fat Determination Instrument |
| Extraction Principle | Randall Continuous Extraction Technology |
| Compliance Standards | AOAC 920.39, ISO 1443, ISO 6496, EPA 3541, APHA 5520E, UNI EN ISO 1443 |
| Safety Certification | CE, IEC 61010-1 |
| Brand | Yuntang |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | YT-DB |
| Wavelength Range | 950–1650 nm |
| Sample Form | Solid granules, powders, or forage |
| Measurement Time | 1–3 min per sample |
| Sample Chamber Capacity | 600 mL |
| Dimensions (L×W×H) | 30 × 27 × 23 cm (including sample chamber) |
| Weight | 6 kg |
| Display | 10-inch color touchscreen |
| Power Supply | 12 V / 4 A |
| Battery Operation | Optional external battery (5 h runtime) |
| Operating Temperature | 5–45 °C |
| Compliance | Designed for routine QC in food, feed, and grain supply chains per ISO 12099, AOAC 984.27, and USP <1119> NIRS guidelines |
| Brand | Yuntang |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | YT-MP12 |
| Pricing Range | USD 430–1,050 (FOB) |
| Instrument Type | Protein Rapid Determinator |
| Measurement Principle | Colorimetric Bradford/Lowry-Style Assay (Kjeldahl-Validated Correlation) |
| Sample Matrix | Liquid milk, reconstituted milk powder, whey liquid, whey protein concentrate (WPC), whey protein isolate (WPI) |
| Repeatability | < ±1% RSD (n=10, 3.0–4.5% w/v protein) |
| Limit of Detection | 0.1 mg protein per assay |
| Recovery Rate | >99.5% (spike recovery in certified reference milk matrices, ISO 8968-1:2014 compliant validation) |
| Brand | Yuntang |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | YT-Z12T |
| Detection Principle | Colorimetric Protein Assay (Biuret/Lowry-type adapted for dairy matrices) |
| Sample Types | Liquid milk, powdered milk, reconstituted infant formula, and other liquid/soluble dairy products |
| Repeatability | ±1% RSD |
| Limit of Detection | 0.1 mg protein per test |
| Recovery Rate | >99.5% |
| Optical System | Quadruple-wavelength cold LED光源 (410, 520, 590, 630 nm), with patented optical path switching enabling up to 64 effective wavelengths |
| Detection Channels | ≥12 independent cuvette-based channels with precision rotary photometric cell design |
| Data Storage Capacity | >200,000 records, supporting USB export in Excel-compatible CSV format |
| Operating System | Android-based UI on ARM Cortex-A7 (RK3288, quad-core, 1.88 GHz) |
| Display | 10.1-inch vertical capacitive touchscreen |
| Connectivity | Dual-band Wi-Fi, 4G (APN), Bluetooth 5.0, dual USB 2.0, RJ45 Ethernet |
| Power Supply | AC/DC dual mode |
| Remote Firmware Update | OTA-enabled, client-specific, zero-downtime automatic update on boot |
| Brand | Yuntang |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | OEM/ODM Producer |
| Country of Origin | China |
| Model | YT-Z12T |
| Product Category | Protein Determinator |
| Detection Principle | Colorimetric Assay (Biuret/Lowry- or Bradford-type) |
| Sample Matrix | Liquid Milk, Infant Formula, Powdered Dairy Products, and Other Food Matrices |
| Repeatability | < ±1% RSD |
| Limit of Detection | 0.1 mg protein per assay |
| Recovery Rate | > 99.5% |
| Detection Channels | ≥12 independent optical channels with precision rotating cuvette design |
| Light Source | Imported quad-wavelength cold LED source (410 nm, 520 nm, 590 nm, 630 nm) |
| 64-wavelength capability via patented optical path switching (Patent No. | ZL202022821055.2) |
| Display | 10.1-inch vertical capacitive touchscreen running Android OS (ARM Cortex-A7, RK3288 quad-core @ 1.88 GHz) |
| Data Storage | ≥200,000 test records |
| Connectivity | Dual USB ports, RJ45 Ethernet, Bluetooth 4.2, 4G APN module, Wi-Fi 802.11 b/g/n |
| Power Supply | AC/DC dual-mode (12 V DC input) |
| Software Compliance | Supports GLP-compliant data logging |