Formamide,5000 μg/mL in Water

甲酰胺

Formaldehyde-DNPH,1000 μg/mL in AcCN

甲醛-2,4-二硝基苯腙

PCB-1668A套标(含5种混标), PCB Congener Set

校准溶液＃1方法200.7, Calibration Standard #1 Method 200.7,Varied conc. in 2-5% Nitric Acid

校准标准品#4方法200.7, Calibration Standard #4 Method 200.7,Varied conc. in 2-5% Nitric Acid, tr Hydrofluoric acid

方法200.7仪器性能检测- 校正4.41994年6月, Method 200.7 Instrument Performance Check,Varied conc. in 2-5% Nitric Acid

方法200.7仪器性能检测- 校正4.41994年11月, Method 200.7 Instrument Performance Check,Varied conc. in 2-5% Nitric Acid, tr Hydrofluoric acid

同位素标准溶液#1方法200.7(1991), Spiking Std #2 Method 200.7 (1991),10000 μg/mL in 2-5% Nitric Acid

同位素标准溶液#1方法200.7(1991), Spiking Std Set Method 200.7 (1991)

三卤代甲烷混标, Trihalomethanes Mix,2.0 mg/mL in MeOH