SUPELCO
Potassium Disulfite
焦亚硫酸钾
Total Hardness Test
Zinc sulfate heptahydrate
硫酸锌 七水合物
tetra-Sodium diphosphate decahydrate
CombiTitrant 5
滴定剂
Purospher® STAR RP-18 endcapped (5μm) LiChroCART® 250-4.6
Purospher® STAR RP-18封尾 (5μm) LiChroCART® 250-4.6
Chlorine Test
Sucrose (Saccharose) Test
N-(Trimethylsilyl)imidazole
Potassium chloride solution (nominal 0.147 mS/cm)
氯化钾 溶液
Certified sec. standard reference buffer solution
二级标准缓冲物质 pH 4.005
COD Standard Solution, CRM
Quinaldine Red
TLC Silica gel 60 F254