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With Certificate 0.5% Alkaline Methylene Blue Stain Solution 5ml*4 Bottles

With Certificate Potassium Sulfate Standard Solution in Water/2020 Pharmacopeia Cas: 7778-80-5 100Μg/Ml

Scientific Research Reagents with Certificate Nicotinamide Ribonucleotide Chloride Cas: 23111-00-4 ≥98%

With Certificate Citric Acid Citrate Titration Solution 0.1Mol/L Standard Solution

With Certificate Scientific Research Reagent Water-Soluble Fluoride in Soil/Total Fluoride/Hj873-2017 Standard Substance

With Certificate Scientific Research Reagents Gallic Acid Lauryl Cas:1166-52-5 ≥99%

With Certificate Scientific Research Reagent Gsb03-2201-2008 Industrial Silicon 5 Components

With Certificate 8 Kinds of Anion Mixed Standard Solution in Water

With Certificate 5 Kinds of Anion Mixed Standard Solution 100Μg/1000Μg/Ml

With Certificate Zinc Standard Solution in Water 100μg 1000Μg0.1Μg0.25Mg

Scientific Research Reagents with Certificate Ferrous Sulfate Cas;7720-78-7 ≥98% Standard Substance

With Certificate Manganese Standard Solution in Water

Scientific Research Reagents with Certificate L-Carnitine Cas:305-84-0 Hplc≥98% Chromatographic Purity

With Certificate Scientific Research Reagents 5 Kinds of Heavy Metals in Wheat Flour Quality Control Samples Standard Substance

With Certificate Potassium Standard Solution in Water 1000Μg/10Μg/Ml5Μg/Ml100Μg/Ml

With Certificate Milk Powder Lead Quality Control Sample 30g Standard Substance

Scientific Research Reagents L-Cysteine Cas:56-89-3 Hplc≥99% Chromatographic Purity

With Certificate Soybean Flour Protein Quality Control Sample / with N) Scientific Research Reagent

With Certificate Ozone Standard Solution(Iodine Titration Method)/Gb/T 5750-2006

With Certificate Mixed Standard Sample of Water Quality Chlorate and Hypochlorite

With Certificate Allicin Cas:539-86-6 Uv≥98% Scientific Research Reagent

With Certificate Vinegar Total Acid Quality Control Sample 3.62G/100Ml

Certified Ammonium Oxalic Acid Solution/Calcium Hydroxide Solution/Magnesium Chloride Solution Standard Substance

With Certificate Calcium Oxide Standard Solution in Water 1000Μg/Ml 2Mg/Ml

With Certificate Three Price Chromium Standard Solution 100Μg/Ml

With Certificate Alumina Tricalcium Oxide Calcium Oxide Magnesium Oxide Standard Solution in Water

With Certificate Scientific Research Reagents Fluoride Quality Control Sample in Tea 676Mg/Kg 65.67Mg/Kg 208.32Mg

With Certificate Ph Standard Buffer Solution Sodium Tetraborate/ Potassium Hydrogen Phthalate 4.0 4.01 9.189.21

With Certificate Scientific Research Reagents Tea Saponin Control Product Cas: 8047-15-2 Identification Standard Substance

With Certificate Lead Water Quality Standard Substance

Potassium Ferrocyanide in Water with Certificate Standard Solution Cas:14459-95-1 1000Μg/Ml

Scientific Research Reagents with Certificate Nicotinamide Cas:98-92-0 Hplc≥99% Chromatographic Purity

Scientific Research Reagent with Certificate of Total Nutrients Nitrogen, Phosphorus and Potassium Quality Control Sample of Organic Fertilizer Ny/T525-202 Standard Substance

With Certificate 7 Kinds of Anion Mixed Standard Solution / Standard Sample

8 Kinds of Food Coloring in Water with Certificate Sunset Yellow Lemon Yellow Amaranth Red Carmine Red Bright Blue Red Fresh Standard Solution

Scientific Research Reagent with Certificate Glutathione (Reduced Form) Cas:70-18-8 Hplc≥98% Chromatographic Purity

With Certificate Scientific Research Reagents Pvc Medium Hexavalent Chromium Quality Control Standard Substances

With Certificate Standard Colorimetric Solution / Purple Red / Yy0167-2020

With Certificate Total Esters in Liquor Quality Control Sample Scientific Research Reagent

Certified Scientific Research Reagent Oxidized Coenzyme I Cas:53-84-9 Hplc≥98% Chromatographic Purity