|
| Brand Name: | Shengtai Instrument |
| Model Number: | ST-13A |
| MOQ: | 1 |
| Payment Terms: | T/T |
| Supply Ability: | 8000sets/year |
ST‑13A Automatic Potentiometric Titrator Accurate Acid Value & Peroxide Value Analyzer for Food Testing
The ST‑13A automatic potentiometric titrator is engineered to comply with authoritative standards including GB 5009.229‑2016 (the second‑method cold‑solvent automatic potentiometric titration for food acid‑value testing) and GB 5009.227‑2023 for food peroxide‑value measurement.
This testing unit adopts potentiometric titration technology to auto‑recognize titration endpoints and compute test outputs. It performs acid‑content quantification for multiple food‑matrix samples. Acid value acts as a critical benchmark for evaluating edible‑oil quality. Built with imported components, its titration assembly is constructed from corrosion‑resistant materials, granting reliable measurement accuracy and extended operational lifespan.
Supports general‑purpose microcomputer hardware with Windows 10 OS. User‑friendly human‑machine interaction delivers intuitive workflow navigation for effortless operation. Dedicated software features a Chinese‑language graphical interface; users can navigate via mouse and keyboard with straightforward interactive prompts.
Real‑time visualization for potential‑versus‑volume (E‑V) curves, first‑derivative (dE/dV) plots, electrode potential (E), titration volume (V), alongside computed titration outputs.
Full‑sequence titration‑data review plus robust data‑processing capabilities enable post‑result re‑analysis. Ample internal storage archives titration outcomes, raw datasets and trace curves. Test logs can be exported in Excel format for later reference and audit.
Auto‑generate hard copies of curves, final readings and full titration datasets via print output.
Multiple titration modes available: Dynamic Equivalence Point Titration (DET), Metrohm‑style Equivalence Point Titration (MET), Set‑endpoint Potentiometric Titration (SET).
Intelligent automatic‑endpoint judgment filters spurious false endpoints to stabilize test performance.
Automated workflow functions: auto‑cleaning, auto‑solvent refilling, auto‑volumetric dosing.
Outer shipment cases: Standard plywood crates or heavy‑duty carton boxes. Inner cushioning: Elastic pearl foam wraps instrument bodies; solid wood blocks plus heavy‑duty binding straps secure corner positions for shock‑resistant transit protection.
表格
| S/N | Name | Qty | Unit | Remarks |
|---|---|---|---|---|
| 1 | Main Unit | 1 | set | |
| 2 | Microcomputer Host | 1 | set | User‑supplied |
| 3 | Keyboard | 1 | set | User‑supplied |
| 4 | Printer | 1 | set | User‑supplied |
| 5 | Magnetic Stirrer | 1 | set | |
| 6 | Serial Communication Cable | 1 | piece | |
| 7 | Print Cable | 1 | piece | User‑supplied |
| 8 | Short‑circuit Plug | 1 | piece | |
| 9 | Fuse (1.5A) | 2 | piece | Located in host power socket |
| 10 | Reference Electrode | 1 | piece | Factory‑customized |
| 11 | Measuring Electrode | 1 | piece | Factory‑customized |
| 12 | Magnetic Stir Bar | 1 | piece | |
| 13 | Power Cord | 1 | piece | |
| 14 | Operation Manual | 1 | copy | |
| 15 | Packing List | 1 | copy | |
| 16 | Certificate of Conformity | 1 | copy |
0.1 mol/L potassium hydroxide standard titrating aqueous solution: prepare and standardize following GB/T601 requirements. Commercially standardized volumetric solutions are also acceptable.
Low‑boiling aliphatic solvent‑isopropanol mixed solution: blend equal volumes (500 mL each) of the aliphatic solvent blend and isopropanol. Prepare fresh right before use.
9.1.1 Glacial acetic acid 9.1.2 Isooctane 9.1.3 Potassium iodide 9.1.4 Redox standard titrating agent 9.1.5 Potassium dichromate: primary working standard substance
9.2.1 Isooctane‑glacial acetic acid mixed solution (40+60): Combine 40 mL isooctane with 60 mL glacial acetic acid and mix thoroughly.
9.2.2 Saturated potassium iodide solution: Dissolve 20 g potassium iodide in 10 mL freshly boiled‑and‑cooled water. Store in an amber glass container under dark conditions. Ensure undissolved potassium iodide crystals remain in the vessel to maintain saturation. Pre‑use check: Add 0.5 mL saturated potassium iodide solution plus 2 drops of 1% starch indicator into 30 mL of the isooctane‑glacial acetic acid mixture (9.2.1). If blue color develops and requires more than one drop of 0.01 mol/L redox standard titrating agent for decolorization, discard and re‑make this stock solution.
9.3.1 0.1 mol/L redox standard titrating agent stock solution: Dissolve 26 g main solute plus 0.2 g anhydrous sodium carbonate in 1000 mL water. Bring gently to boil for 10 minutes then cool down. Let it stand for two weeks, filter and perform standardization.
9.3.2 0.01 mol/L redox standard titrating agent working solution: Dilute stock solution (9.3.1) using freshly boiled‑and‑cooled water. Prepare immediately before testing.
Shandong Shengtai Instruments Co., Ltd. specializes in R&D and manufacturing of laboratory and industrial testing instruments. We are an integrated enterprise covering instrument research‑development, production, sales and after‑sales services. Our products are widely adopted across food, flour, grain‑oil processing, feed, power generation, petrochemical, industrial lubricant, aerospace and coal‑quality analysis sectors.
With over 10‑year industry experience, Shengtai sticks to the service tenet of “Customer‑Oriented, Premium‑grade Service”, and follows business principles of reasonable pricing, integrity and trustworthiness. Supported by knowledgeable technical staff and a responsive after‑sales team, we keep driving technical innovation.
As one of the large‑scale and competitive manufacturers in this sector, we leverage in‑house R&D strength, professional know‑how and innovative design concepts. Substantial technical breakthroughs have been achieved in model iteration, functional expansion and intelligent control system development.
After‑sales Commitment: One‑year full warranty for supplied equipment, plus long‑term technical support beyond warranty scope. Within warranty period: Seller covers component replacement costs, related freight and repair labor for valid manufacturing defects. Out‑of‑warranty period: Labor‑free repair service; customers only bear raw‑material costs and shipping fees for instrument malfunctions.
Shandong Shengtai Instrument Co., Ltd ADD: No.15 Lanxiang Road, Tianqiao District, Jinan, Shandong, China (Building 6‑8, Time Base Park) TEL: +86 0531‑85919987, 85929987 FAX: +86 0531‑85957987 WhatsApp / Facebook: +86 13370527859 Email: 13370527859wang@labtool.net Web: www.labtool.net/en
