The National Standards of China GB 5009.18 2025* “National Food Safety Standard - Determination of Fluorine in Foods” specifies the use of a column packed with styrene divinylbenzene copolymer modified with quaternary ammonium groups or a column with equivalent performance. IC SI-50 4E, an ion chromatography column, a good linear calibration curve for fluoride ion was obtained.
*The version at the time of the application acquisition.
Sample: 20 µL
- 1.F- 1.0 mg/L
- Column
- ：Shodex IC SI-50G (4.0 mm I.D. x 10 mm) + Shodex IC SI-50 4E (4.0 mm I.D. x 250 mm)
- Eluent
- ：8.0 mM Na2CO3 + 0.25 mM NaHCO3 aq.
- Flow rate
- ：0.7 mL/min
- Detector
- ：Suppressed conductivity
- Column temp.
- ：45 ℃
Sample Name Index
Operation Manual / Certificate of Analysis
Operation Manuals and Certificate of Analysis / Inspection Certificate for the following products can be downloaded here.
Product Name Index
Applications
- Analysis of Glucosamine Salts as a Food Nutritional Fortifier According to National Standards of China GB 1903.75 2025 (NH2P-50 4E)
- Analysis of Arabinoxylan According to Chinese “Three New Foods” Announcement (No. 3, 2024*) (SH1011)
- Analysis of Fructose, Glucose, Sucrose, Maltose, and Lactose in Foods According to National Standards of China GB 5009.8 2023 (NH2P-50 4E)
- Analysis of Dietary Fiber in Foods According to National Standards of China GB 5009.88‑2023 (LB‑802.5)
- Analysis of Food Additive Polydextrose According to National Standards of China GB 1886.385‑2025 (SH1011)
- Analysis of Xylitol, Sorbitol, Maltitol, and Erythritol in Foods According to National Standards of China GB 5009.279‑2016 Method I (NH2P‑50 4E / VG‑50 4E / SH1011)
- Analysis of Xylitol, Sorbitol, Maltitol, and Erythritol in Foods According to National Standards of China GB 5009.279‑2016, Method II (NH2P‑50 4E / VG‑50 4E)
- Analysis of Food Additive Xylitol According to National Standards of China GB 1886.234‑2016 (SC1211)
- Analysis of Food Additive Isomaltulose According to National Standards of China GB 1886.182‑2016 (VG‑50 4E)
- Analysis of Food Additive D‑Ribose According to National Standards of China GB 1886.141‑2016 (KS‑801)
- Analysis of Food Additive Erythritol According to National Standards of China GB 26404‑2011 (SH1011)
- Analysis of Xylooligosaccharides According to National Standards of China GB/T 23528.3-2025 (KS-802/SH1011)