R-BiopharmFolic acid test kit for food | VitaFast® Folic Acid P1001Code: P1001 · +1 order codes
R-Biopharm
Vitamin B12 test kit for food | VitaFast® Vitamin B12 (Cyanocobalamin)
Manufacturer: R-Biopharm
Origin: Germany
Product code: P1002
Packaging: 96 wells/box
The product is certified by AOAC-PTM 101002
The VitaFast® Vitamin B12 (Cyanocobalamin) test kit is a microbiological method for the quantification of total vitamin B12 (naturally occurring and added vitamin B12) in food and in pharmaceutical products. The microbiological test system complies with international standards.
- Vitamin B12 is extracted from a homogenised sample and the extract is diluted. The diluted extract and the standards are applied to the wells of a microtitre plate coated with Lactobacillus delbrueckii subsp. lactis (leichmannii) .
- The growth of the bacteria depends on the vitamin content of the sample or standard. Lactobacillus delbrueckii belongs to the lactic acid bacteria and has an absolute growth requirement for vitamin B12. This organism is therefore ideal for the quantification of vitamin B12 in food and food supplements.
- In general, lactic acid bacteria are good candidates for vitamin analysis because of their genetic stability (resistance to mutation), simple metabolic requirements, ease of maintenance and general safety as a non-pathogenic organism.
- Certified by AOAC-RI 101002.
- The test system is very robust and suitable for routine analysis.
- The VitaFast® test kits follow a consistent procedure across the whole product line.
VitaFast® Vitamin B12 (Cyanocobalamin) Spiking Standard
Mã hàng | P1002 |
Quy cách | Đĩa vi mô có 96 giếng (12 dải với 8 giếng có thể tháo rời mỗi dải) |
Chuẩn bị mẫu | - Mẫu lỏng (thêm vitamin B12): lọc vô trùng và pha loãng. |
Đọc kết quả | Máy đo quang phổ vi mô 610-630 nm (thay thế 540-550 nm) |
Hướng dẫn sử dụng | |
MSDS |
LOD (Giới hạn phát hiện) & LOQ (Giới hạn định lượng) | - LOD (giới hạn phát hiện): 0,021 µg / 100g (ml) |
Nền mẫu đã xác thực | Nước ép tổng hợp, đồ uống tăng lực, kẹo cao su trái cây, kẹo, thuốc viên, viên nang, hỗn hợp vitamin, ngũ cốc, thức ăn trẻ em, bột mì, các sản phẩm từ sữa. |
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