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With Certificate Calcium Standard Solution/2020 Pharmacopeia 100Μg/Ml 100ml

Lead and Cadmium Quality Control Samples in Drinking Water with Certificate, Standard Substance Scientific Research Reagent

Soil Mechanical Composition Analysis Quality Control Sample/Ly/T 1225-1999/Ny/T 1121.3-2006

With Certificate Total Exchangeable Salt Base in Soil Quality Control Sample/Ly/T 1244-1999

With Certificate, White Sugar Sulfur Dioxide Quality Control Sample 6.35Mg/Kg 50g Standard Substance Scientific Research Reagent

With Certificate Calcium Chloride Standard Solution 0.1Mol/L (0.1m) 0.05Mol

With Certificate Selenium Quality Control Sample Standard Substance in Milk Powder

With Certificate, Soy Sauce Amino Acid Nitrogen Quality Control Sample, Scientific Research Reagent Standard Substance

Certified Scientific Research Reagent Shaanxi Huangmiandu-Effective Ingredient Standard Substance

With Certificate Gbw07103 (Gsr-1) Granite Component Analysis Standard Material

With Certificate Standard Solution Acetate in Water/Acetate 1000μg

With Certificate Gbw07900 Gray Black Soil Composition Analysis Standard Substance

With Certificate Gbw07902 Gbw07407 (Gss-7) Brick Red Soil Component Analysis Standard Substance

With Certificate Gbw07901 Yellow Brown Soil Component Analysis Standard Substance

With Certificate Gbw07903 Red Soil Component Analysis Standard Substance

With Certificate Gbw07385(Gss-29) Standard Material for Sediment Component Analysis in Flood Plain

With Certificate Gbw07108 (Gsr-6) Standard Substance for the Analysis of Mudstone Gray Rock Composition

With Certificate Gbw10020 (Gsb-11) Citrus Leaf Composition Analysis Standard Substance

With Certificate Molybdenum Standard Solution in Water 1000Μg/M 100Μg/Ml

7 Kinds of Food Coloring in Water/Sunset Yellow/Lemon Yellow/Amaranth Red/Carmine Red/Bright Blue/Red Crimson/Temptation

With Certificate Potassium Bromate- Potassium Bromide Standard Solution C(1/6Kbro3)=0.1Mol/L

With Certificate Sucralose Stock Solution in Water 1000Μg/Ml

With Certificate Chinese Herbal Medicine Total Ash Quality Control Sample 3.5% 20g Standard Substance Scientific Research Reagent

With Certificate Scientific Research Reagents Chromatographic Pure Chicory Acid Cas:6537-80-0 Hplc≥98% Standard Substance

With Certificate High Manganese Oxide Index in Seawater Standard Sample Cod-Mn/Standard Solution

With Certificate White Sugar Medium Color Value Quality Control Sample Standard Substance Scientific Research Reagent

With Certificate Aspartame Standard Solution in Water 1000Μg/Ml100Μg/Ml

With Certificate Scientific Research Reagents Brilliant Blue Cas: 3844-45-9 Hplc≥98% Chromatographic Pure Standard Substances

With Certificate Strontium/Selenium/Metasilicate Quality Control Sample Standard Substance in Mineral Water

Gbw07447 (Gss-18) Salt-Alkali Soil Component Analysis Standard Substance in Hangjinhou Banner, Inner Mongolia

With Certificate Gbw07104 (Gsr-2) Anshan Rock Component Analysis Standard Material

With Certificate Scientific Research Reagents Melamine Quality Control Sample Standard Substance in Milk

With Certificate Sichuan Purple Soil-Full Ingredient Analysis Standard Substance 70g

Heilongjiang Black Soil-Effective Component Standard Substance/Nst-1 Heilongjiang Black Soil-Soil Total Component Analysis

Certified Gbw07497 (Htsb-5 Loess Soil Effective Component Analysis Standard Substance - Loess Soil

Gbw07451(Gss-22) Standard Substance for Component Analysis of Sediment in Huanghe Tidal Flats in Rizhao City

With Certificate Copper Standard Sample in Sea Water / Copper Standard Solution in Sea Water Standard Substance

With Certificate Gbw07177-Gbw07182 Alumina Ore Composition Analysis Standard Substance

With Certificate Sichuan Purple Soil-Effective Ingredient Standard Substance Scientific Research Reagent

With Certificate Gbw07449 (Gss-20) Xinjiang Tianshan Salt-Alkaline Soil Component Analysis Standard Substance