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Standard substance and standard solution

Product name Specifications Packing Unit price / yuan
Acetaldehyde acetal furfural ethanol solution 50ml
Ninhydrin reagents (R1 and R2) A group
Phosphite standard solution 50ml
Sulfite standard solution 50ml
Sodium bisulfite standard solution 50ml
Ethyl benzene standard solution 50ml
1.6-Oxalic acid
Benzoic acid
Aromatic Reference Materials for Petrochemical Industry (4 Kinds) 3-4% 100ml
Mixed phosphate I PH=6. 86 ± 0. 02 25 ° C 500ml
-< br > bromine standard solution in light oil 5ng/ml < br > 10ng/ml < br > 50ng/ml < br > 100ng/ml < br > 200ng/ml 5ml × 5
Standard solution of-< br > nitrogen in light oil 5ng/ml < br > 10ng/ml < br > 50ng/ml < br > 100ng/ml < br > 200ng/ml 5ml × 5
Standard solution of-< br > phenol in light oil 5ng/ml < br > 10ng/ml < br > 50ng/ml < br > 100ng/ml < br > 200ng/ml 5ml × 5
Acetic acid 0.1000 mol/L < br > 1.0000 mol/L 50ml
Potassium hydroxide 0.1000 mol/L < br > 0.1000 mol/L < br > 0.5000 mol/L < br > 1.0000 mol/L < br > 0.0500 mol/L 50ml
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