Atrazine-2-hydroxy D5, 100µg/mL in MeOH, 1,1ml

Sodium p-n-undecylbenzenesulfonate, 100µg/mL in MeOH, 1ml

Sulfur in Heavy Weight Mineral Oil - 0.010 Wt%

Phenol-Mix 17, 1000µg/mL in MeOH, 1ml