SUPELCO
Certified sec. standard reference buffer solution
二级标准缓冲物质 pH 9.184
Diethylenetriaminepentaaceticacid
COD Standard Solution, CRM
TLC Silica gel 60 F254
Methyl Stearate
Glycolic Acid
乙醇酸
Lithium sulfate monohydrate
Potassium standard
Diphenylamine-4-sulfonic Acid Barium Salt
Ammonium Cell Test
铵测试管
2′,7′-Dichlorofluorescein
BOD Nutrient-Salt Mixture
Chlorine Dioxide Test
Chromolith® CapRod® RP-18 endcapped 150-0.2 capillary column