The Graphite Block Acid Digestion System ECOPRE ODLAB

The Graphite Block Acid Digestion System (ECO-PRE) ODLAB

The existing digestion method’s sample digestion figures The harmful gas happen and loss. The corrosion happen and sample contamination The unbalanced heating temperature ODLAB

The digestion system’s component(basic) Graphite hot block (OD-98 -HP) Graphite block (OD -98 -24 Hole) Graphite block (OD-98 -12 Hole) Teflon digestion vessel (Baek. Du™) ODLAB

The material characteristics Teflon coated on the graphite block Corrosion proof (Teflon and graphite ) Sample digestion figure Handmade controller(Acrylic) ODLAB

The Teflon acid collection digestion vessel (Baek. Du™)’s structure & principle Emission part Circulation/Repetition Collection tube Digestion vessel Heating Evaporation peak Falling Re-Evaporation ODLAB

The digestion process for each sample and temperature/ time program 　 ④ 　 210℃ 　 　 ⑤ ⑨ ③ End 　 　 170℃ ⑧ 140℃ ⑥ 120℃ ① 　 ① ⑩ ② 160℃ 　 ⑦ ② ③ ④ ⑤ ⑥ ⑦ 　 ⑧ ⑨ ⑩

The digestion time for each sample 　 　 90 min 2~3 hrs 3~4 hrs 6~7 hrs 　 210℃ End 　 160℃ 170℃ 　 140℃ 　 120℃ 　 Jewelry Wastewater Fertilizer Filter Plant body Bionics Food 　 Soil Compost Food Plastic Oil Marine sediment

The digestion vessel’s different type and size. 1. 300 ml 2. Brand new product 3. 3 different type vessels digestion vessel for work environment analysis 50 ml(left) / 100 ml(right) ODLAB

The installation of the stirrer (for stirring with heating for 24 ea samples simultaneously) ODLAB

The hexavalent chromium digestion(USEPA-3060 A) Measure Sample 2. 5 g accurately and place into acid digestion vessel 5 minutes stirring after cover with the collection tube. Heated digestion solution 50 ml at 90~95℃ (Dissolve Na. OH 20 g+Na 2 CO 330 g in reagent water in a oneliter volumetric flask and dilute to the mark) Add magnesium chloride 0. 4 g into digestion vessel Add 0. 1 M phosphate buffer 0. 5 ml into digestion vessel. Heating and stirring (90℃~95℃ for 60 minutes Filtering after air–cooled (Filter membranes 0. 45 um) Used 5. 0 M HNO 3 for PH 7. 5 ± PH 0. 5 adjust Caution: If failure to meet between PH 7. 5 ± PH 0. 5 range, Necessitate redigestion of the samples. Digestion vessel cleaning with distillated water. ODLAB

Application The soil aqua-regia digestion method according to the soil contamination official test method The heat digestion method according to the food official test method -The sample quantity 5 g digestion in the food for cd, pb analysis The heating block digestion method according to the US-EPA 3050 The hexavalent chromium elution digestion method according to the US-EPA 3060 A The marine waste, sediment digestion according to the marine contamination official test method ODLAB

The recovery rate KRISS water parsley certified reference material(CRM) - plant body Pb Cd Certified value 1. 05 ppm *0. 066 ppm Sample 1 1. 048 ppm 0. 068 ppm 　 Sample 2 1. 047 ppm 0. 067 ppm Varian ICP-MS, Clean room, ultra high purity nitrogen acie 14 ml *This table is the reference value JSAC Plastic High level certified reference material(CRM) - polymer 　 Pb Cd Cr Certified value 945 ppm 93. 6 ppm 946. 3 ppm Sample 1 957. 4 ppm 88. 6 ppm 902 ppm Sample 2 925. 8 ppm 89. 7 ppm 897. 3 ppm Perkin Elmer ICP, semi-conductor class nitrogen acid 15 ml, hydrogen acid 2 ml, sulfuric acid 2 ml ODLAB

The statistical interpretation for the analysis result Ø Cadmium (Cd) : 0. 288± 0. 009 mg/kg (Z-Score 0. 15) ü Certified value : 0. 263± 0. 004 mg/kg Ø Lead (Pb) : 1. 561± 0. 059 mg/kg (Z-Score 0. 24) ü Certified Value : 1. 463± 0. 025 mg/kg

Result ODLAB

The product certification and safety policy <Bimetal> ODLAB

Customer List National institute of environmental including analysis organization (Delivered 100 places) Seoul university, seonggyungwan university including 20 universities Research insitute of public health and environment & agricultural product quality management service (20 places) Forest research institute & food companies through Japan agency(25 places) Taiwan agency including southeast asia (6 places) Currently consult with Indo & Germany company agency ODLAB

The ODLAB’s handling item list 1) Certified Reference Material(CRM) -Search for the wanted product. 2) High purity/Ultra high purity acid -recommended for trace element analysis 3) ICP, ICP-MS attachment and consumable -Menufacturer original product/good price ODLAB

Question Thank you ODLAB