1. Better Safety, Better Effectiveness Well suited for digestion by acids Proposal New idea for pretreatment of sample analysis ECOPRE-SYSTEM

2. ① No need to add acid during digestion ② Able to analyze sample weight enough (up to solid 5g) ③ Easy handling system from start to end ④ Emits low harmful gas ⑤ Homogenous digestion up to 45 samples ⑥ Provides safety environment ⑦ Able to other work during digestion (safety, save time) ECOPRE-SYSTEM

3. Acid Inert Heating Plates & Semi-opening vessel ・The world’s first Semi-Opening Vessel of air condensing ・No need to add hazardous acid during digestion ・Diminish damage of high cost Hood ・Fluoroplastic vessel (high durability) ・Acid inert heating plates coated with Teflon ・Available for analyzing trace samples ・Provide safe environment ・Analyze multiple samples at once Propose new Graphite Digestion System

4. Process 1. Put vessel on the electronic scale then measure of weight 2. Drop reagent into a digestion vessel3. Drop HNO3(5%) into a collection tube 4. Arrange the vessels on the graphite block then start heating 5. Digesting with brown gas6. End of digestion

5. 220℃220℃ 160 ℃ 120 ℃ ① ② ③ ④ ⑤ ⑥ ⑦ ⑧ ⑨ ⑩ Best example of digestion process ⑩ ① ② ③ ④⑤ ⑥ ⑦ ⑧ ⑨ Applying as circulating program(heating∙condensing) above, digest samples safely End 170℃ 140℃

6. Beaker∙Block Heater Microwave High Pressure Digestion Digestion System depends on detection level ppm >> ppb >> ppt

7. The World’s First Circulating Digestion Method 300 ｍｌ 100 ｍｌ 60 ｍｌ Peak point of evaporation Reagent backflow Repeatedly circulate the process to digest completely Reagent evaporate Heating the vessel up to 245℃ Circulating digestion continually Able to Digest high oily, organic contents Especially, provide safety environment for working Secondary Reagent evaporate Start Heating Hood Damage, Decline use time (protected by patent)

8. * Put sample and reagent on digestion vessel then arrange the vessel on the graphite block simply * No need to add acid, No need to observe for all processes * Without waste time, work other operation at once You are able to arrange a day effectively with ECO-PRE !! Key Point for recommending ECO-PRE

9. Comparison Table of digestion time depends on equipment 1. ECO-PRE Digestion System (24samples) Start Digestion → Vessel cooling → Modify location → Vessel cooling → Modify location → Vessel cooling → Modify location → Vessel cooling →end preparing ↑30min↑10min↑30min↑10mln↑30min↑10mln↑20min digestion about 4～6hour＋observing time + handling Start Digestion → Pick out vessel and cooling → Mass up Wash vessel → Pick out vessel and cooling, waste water → Preparing samples, digestion → Pick out vessel and cooling →end preparing 1H ↑30min↑40min ＋wash 1H ↑40min ＋digestion1H ↑30min 24 samples digestion about 2hour + washing, cooling, preparing next samples etc. = about 6hour totally Start Digestion →→→→→→→→→ Vessel cooling →end preparingNo additional conditionsAbout 4～6HNo additional conditions↑20min digestion about 4～6hour＋cooling 20min Sample : rice, meat, processed food, crop, soil etc. 3. Microwave (24samples) ※available up to 12samples with Rotor 2. Hotplate with Beaker (24samples)

10. * ODLAB controller is separable to connect with hood outside and decline damage from heat, acid * The wiring jacketed with fluoroplastic tube to prevent damage from acid Separable Controller Fluoroplastics Tube Connected to Controller Separable Touch Screen Controller

11. * Easy handling with screen manual * Able to save your digestion method then import from saved List * Show present temperature/time, proceeding temperature/time on the Windows CE, 7 inch screen * Smart alarm to announce wrong applied temperature, error etc. Touch Screen Controller Apply a programImport from saved user program list

12. Major Sample Application SamplesWeightReagentCollection liquidUp to (℃) Digestion Time Rice 0.5g (dry) HNO3 14ml5％ HNO3 6ml210℃4H Fish0.5gHNO3 15ml + H2O2 3ml5％ HNO3 6ml210℃4H Cake, milk0.5gHNO3 14ml5％ HNO3 6ml220℃4H Half Natural seasoning1gHNO3 14ml5％ HNO3 6ml200℃5H Concentrated orange juice 5gHNO3 17ml + H2O2 3ml5％ HNO3 6ml210℃7H Canned fruits0.5HNO3 10ml + H2O2 2ml5％ HNO3 6ml210℃1H Half Plant Oil0.5gHNO3 15ml + H2O2 5ml5％ HNO3 5ml220℃4H～ Spinach3ｇHNO3 15ml5％ HNO3 6ml200℃4H～ Soil(ISO11466)3ｇHNO3 7ml + HCl 21ml5％ HNO3 6ml130℃4H～ PE (chip) 0.2gHNO312ml + H2SO4 2ml5％ HNO3 6ml220℃10H PS (chip) 0.2gHNO3 20ml + H2SO4 2ml5％ HNO3 6ml220℃10H～

13. * In August, 2008 ODLAB began and developed ECO-PRE digestion system and opened to sales * About 500 customers in the world use ECO-PRE * Provides a wide variety of custom services in the environment, grocery, agriculture, technical, semiconductor industry About ODLAB