165μg/mL Matrix: Water U=1%

10μg/ml, solvent: toluene

≥95%

Azobenzene 10.5ng/μL, malathion 10.0ng/μL, matrix: isooctane

(1 bottle of sulfur dioxide standard solution 100μg/mL, 20ml/ bottle, 1 bottle of formaldehyde absorption buffer 20Ml/ bottle, 2 bottles of roseaniline hydrochloride 0.05g/100mL, 1 bottle of sodium sulfamate 0.60g/ bottle) Substrate: water .U=1%

100pg/μL, matrix: isooctane

standard solution

10~100mg/L, matrix: methanol

0.5ng/mL, 1.0ng/mL, 3.0ng/mL, 5.0ng/mL, matrix: 2% nitric acid, U=2%