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

ECOPRE-SYSTEM 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)

Propose new Graphite Digestion System 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

Process 1. Put vessel on the electronic scale then measure of weight 2. Drop reagent into a digestion vessel 3. Drop HNO3(5%) into a collection tube 4. Arrange the vessels on the graphite block then start heating 5. Digesting with brown gas 6. End of digestion

Best example of digestion process 220℃ 160℃ 120℃ ⑩ ① ② ③ ④ ⑤ ⑥ ⑦ ⑧ ⑨ End 170℃ 140℃ ① ② ③ ④ ⑤ ⑥ ⑦ ⑧ ⑨ ⑩ 加熱開始後NOXなどのガス1番から4番まで発生. ④番から⑤番までの保持時間は、今まで100ML容器と違って時間が少しかかります。 すなわち、使用された酸量と容器の大きさのために保持時間は1時間から1時間30分ほどかかります。 この保持時間の設定は、模範解答案がないので、上記の時間を標準として設定してください ただし、⑤番から試料が焦げないように時間を保持時間を設定することが非常に重要です。 また、維持設定時間が短いと分解効率が低下します。＜酸濃縮による分解効率を最大化＞ したがって、⑤番で140度の温度を落とすとき、分解容器内部に約酸1ml〜2ml程度残ったと判断した場合、温度を落とさなければなりません。  特に有機物が多い試料は、試料が焦げると分解時間がもっとかかります。 ***保持時間の設定キーポイント*** 酸の濃縮による分解効率の最適化、試料の炭化防止になるよう保持時間の設定 Applying as circulating program(heating∙condensing) above, digest samples safely

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

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

Key Point for recommending ECO-PRE * 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 !!

Comparison Table of digestion time depends on equipment 1. ECO-PRE Digestion System (24samples) Sample : rice, meat, processed food, crop, soil etc. Start Digestion → Vessel cooling end preparing No additional conditions About 4～6H ↑20min digestion about 4～6hour＋cooling 20min　 2. Hotplate with Beaker (24samples) Start Digestion → Vessel cooling Modify location Vessel cooling Vessel cooling Vessel cooling end preparing ↑30min ↑10min ↑10mln ↑20min digestion about 4～6hour＋observing time + handling 3. Microwave (24samples) ※available up to 12samples with Rotor Start Digestion → Pick out vessel and cooling Mass up Wash vessel Pick out vessel and cooling, waste water Preparing samples, digestion end preparing 1H ↑30min ↑40min ＋wash 1H ↑40min ＋digestion1H 24 samples digestion about 2hour + washing, cooling, preparing next samples etc. = about 6hour totally

Separable Touch Screen Controller Separable Controller * 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 Fluoroplastics Tube Separable Touch Screen Controller Connected to Controller

Touch Screen Controller * 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. Apply a program Import from saved user program list

Major Sample Application Samples Weight Reagent Collection liquid Up to (℃) Digestion Time Rice 0.5g (dry) HNO3 14ml 5％　HNO3 6ml 210℃ 4H Fish 0.5g HNO3 15ml + H2O2 3ml 5％　HNO3　6ml Cake, milk 220℃ 4H Half Natural seasoning 1g 200℃ 5H Concentrated orange juice 5g HNO3 17ml + H2O2 3ml 7H Canned fruits 0.5 HNO3 10ml + H2O2 2ml 1H Half Plant Oil HNO3 15ml + H2O2 5ml 5％　HNO3　5ml 4H～ Spinach 3ｇ HNO3 15ml Soil(ISO11466) HNO3 7ml + HCl 21ml 130℃ PE (chip) 0.2g HNO312ml + H2SO4 2ml 10H PS (chip) HNO3 20ml + H2SO4 2ml 10H～

About ODLAB * 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