Method Development of Analysis

Method Development of Analysis (Validation and verification of analytical method) Food Packaging

No.	Method of analysis	LOD	LOQ	Techniques
1.	Enameled / aluminium / stainless steel cookware, paper, wood Zleaching of heavy metals below) - Lead - Cadmium	-	0.02 ppm¹,0.1 ppm², 0.1 ppm³0.005 ppm¹, 0.01 ppm², 0.01 ppm³	Graphite -furnance¹ Flame AAS² ICP-OES³
2.	Overall migration by food simulants : - 10% ethanol - 3% acetic acid - 20% ethanol - 50% ethanol - Vegetable oil - Tenax	0.5 mg/dm²0.5 mg/dm² 0.5 mg/dm²0.5 mg/dm²0.2 mg/dm²0.4 mg/dm²	1.0 mg/dm²1.0 mg/dm²1.0 mg/dm²1.0 mg/dm²0.5 mg/dm²1.5 mg/dm²	Gravimetric method
3.	Extractable by Xylene for plastic packaging containing milk and milk product	1.5 ppm	5 ppm	Gravimetric method
4.	Extractable by hexane for plastic packaging containing milk and milk product	1.5 ppm	5 ppm	Gravimetric method
5.	Lead in plastic packaging	0.04 mg/kg	0.2 mg/kg	AAS
6.	Cadmium in plastic packaging	0.01 mg/kg	0.05 mg/kg	AAS
7.	ATBC, DINCH, Sebacate and Phthalates in food - Di-2-ethylhexyl phthalate (DEHP) - Di-isononyl phthalate (DINP) - Di-iso-decyl phthalate (DIDP) - Dibutyl phthalate (DBP) - Benzylbutyl phthalate (BBP)	0.2 mg/kg 3.0 mg/kg 3.0 mg/kg 0.1 mg/kg 0.1 mg/kg	0.6 mg/kg 9.0 mg/kg 9.0 mg/kg 0.3 mg/kg 0.3 mg/kg	GC-MS with PTV injection
8.	Nitrosamine	3 μg/kg	8 μg/kg	LC/MS/MS
9.	Melamine
10.	3 ring to 6 ring NOGE	0.3 μg/ml	1 μg/ml	HPLC
11.	Corrosion rate of canned food	-		Tafel plot technique
12.	Resistance of lacquered canned food	-		A.C. impedance