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17 Mix Metal Standard Solutions: Stroma:5% Nitric acid and measured hydrofluoric acid Form:Liquid Storage conditions:Storage in cool airtight condition. Kept constant temperature to 20±4℃ before use and shaken well to ensure ...

Calcium Standard Solution: Stroma:Hydrochloric acid Form:Liquid Storage conditions:Storage in cool airtight condition. Kept constant temperature to 20±4℃ before use and shaken well to ensure uniformity. You'd better use up ...

Rice Flour Composition Analysis Standards: Cr0.0560.009Mass fraction(10-6) Total As0.250.03Mass fraction(10-6) Cd0.410.02Mass fraction(10-6) Hg0.00410.0008Mass fraction(10-6) Pb0.150.02Mass fraction(10-6) Machine As0.190.03Mass ...

CD Standard Solution: Stroma:5% Nitric acid Form:Liquid Term of validit:24 Months Storage conditions:Store in a cool airtight condition. Before use, it should be kept at a constant temperature of 20±3°C and shaken well. ...

Decane in Methanol: Stroma:Alcohol Form:Liquid Storage conditions:Store in cool, airtight and dark condition. Equilibrating in room temperature (20±3℃) before use, and shaken well to ensure uniformity. Once ampoules ...

22 Mix VOC in Acetonitrile: Stroma:Acetonitrile Form:Liquid Term of validit:18 Months Storage conditions:Store in a freezer-tight and dark place at -20°C. Before use, it should be kept constant temperature to 20±3℃, and shaken ...

Aflatoxin G1: Stroma:Acetonitrile Form:Liquid Term of validit:12 Months Storage conditions:Store at -20°C protected from light. It should be equilibrated at room temperature (20±3℃) before use, and shaken well to ...

Sodium Thiosulfate Titrations Solution: attention:Before use, it should be kept constant temperature to 20±3℃, and shaken well to ensure uniformity. Strictly prevent contamination during use. Reference material:Preparation of standard ...

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