不同水體的氫氧穩(wěn)定同位素可用于植物水分利用來源、水汽輸送、土壤水運(yùn)移和補(bǔ)給機(jī)制、補(bǔ)給源和地下水機(jī)制、水體蒸發(fā)、植物蒸騰和土壤蒸發(fā)的區(qū)分、徑流的形成和匯合、重建古氣候等方面的研究。因而引起了水文學(xué)家，生態(tài)學(xué)家以及氣候?qū)W家等的廣泛關(guān)注。但問題是：在進(jìn)行水穩(wěn)定同位素測試之前如何將植物木質(zhì)部和土壤中的水分無分餾的提取出來？
LI-2100是LICA自主研發(fā)的一款全自動(dòng)真空冷凝抽提系統(tǒng)，且已通過CE認(rèn)證。從根本上解決了植物和土壤水分提取的難題，克服了傳統(tǒng)液氮冷卻的繁瑣，不僅可以防止同位素分餾，而且安全高效，不會(huì)對(duì)植物和土壤造成破壞。可與LGR水同位素分析儀和質(zhì)譜儀配套使用。許多科學(xué)家已經(jīng)結(jié)合LI-2100和LGR的水同位素分析儀進(jìn)行了諸多研究。
從研發(fā)生產(chǎn)至今，LI-2100在國內(nèi)已經(jīng)銷售了近百臺(tái)，國內(nèi)的科研工作者利用這臺(tái)儀器發(fā)表了諸多文獻(xiàn)，得到了用戶的眾多好評(píng)。
隨著LI-2100在國內(nèi)的廣泛應(yīng)用及眾多文獻(xiàn)的發(fā)表，國外的一些科學(xué)家也開始關(guān)注理加公司研發(fā)生產(chǎn)的LI-2100，理加公司也積極在海外推廣該產(chǎn)品，由此拉開了LI-2100走出國門、走向海外的序幕。
LI-2100在海外的安裝案例
1. 巴西國家空間研究所（INPE）
應(yīng)用：利用LI-2100抽提土壤、植物中的水，進(jìn)行同位素相關(guān)研究。
科學(xué)家簡介：
Laura De Simone Borma (勞拉·德·西蒙娜·博爾瑪)
1988 年畢業(yè)于歐魯普雷圖聯(lián)邦大學(xué)土木工程專業(yè)，1991 年獲得里約熱內(nèi)盧聯(lián)邦大學(xué)土木工程碩士學(xué)位，以及里約熱內(nèi)盧聯(lián)邦大學(xué)土木工程-環(huán)境巖土工程博士學(xué)位（1998）。自 2009 年起在 INPE（國家空間研究所）擔(dān)任研究員，從事生態(tài)水文學(xué)和土壤物理學(xué)領(lǐng)域的工作，重點(diǎn)是實(shí)地觀察陸地和極端天氣事件對(duì)土壤-植物-大氣相互作用以及氣候變化、土地利用和覆蓋變化的影響。她目前是 INPE 的 PGCST（地球系統(tǒng)科學(xué)研究生）和 PGSER（遙感研究生）的教授。協(xié)調(diào) CCST/INPE 的生態(tài)水文學(xué) (LabEcoh) 和生物地球化學(xué) (LapBio) 實(shí)驗(yàn)室。她是 ISMC（國際土壤建模聯(lián)盟）的成員。她對(duì)巴西不同生物群落中土壤-植物-大氣相互作用、生態(tài)水文學(xué)以及水和氣候調(diào)節(jié)的生態(tài)系統(tǒng)服務(wù)領(lǐng)域的研究感興趣。LI-2100在海外的安裝案例
2. 澳大利亞Flinders大學(xué) College of Science and Engineering
應(yīng)用：利用LI-2100抽提土壤、植物中的水，進(jìn)行同位素相關(guān)研究。
LI-2100在國內(nèi)的部分安裝案例
1、沈陽氣象局
2、中國林業(yè)科學(xué)研究院亞熱帶林業(yè)研究所
3、廣西植物園
4、中國科學(xué)院西雙版納熱帶植物園
...
發(fā)表文獻(xiàn)
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LI-2100特點(diǎn)
1. 沿用傳統(tǒng)經(jīng)典的真空蒸餾冷凍方法，數(shù)據(jù)可靠
2. 無需液氮：壓縮機(jī)制冷，提高安全性
3. 快速高效：一次可同時(shí)提取14個(gè)樣品
4. 全自動(dòng)抽提：全過程無人值守
5. 安全便捷：自我斷電與自我保護(hù)功能
6. 質(zhì)量控制：故障提示與自動(dòng)報(bào)警
7. 全球首創(chuàng)：專利技術(shù)
8. 氫氧穩(wěn)定同位素前處理
性能指標(biāo)
提取速度 | ＞110 個(gè)/天 |
可同時(shí)提取樣品數(shù) | 14 個(gè) |
系統(tǒng)真空度 | ＜1000 Pa |
系統(tǒng)漏率 | ＜1 Pa/s |
抽提率 | ＞98% |
回收率 | 99%-101% |
真空泵 | 5 L/min, 24 V, 最大壓力, 0.3bar |
制冷 | 無需液氮，壓縮機(jī)與冷阱結(jié)合，最低制冷溫度可達(dá) -95℃ |
制熱 | 電磁制熱，最高制熱溫度可達(dá) 130℃ |
顯示與操作 | TFT LCD (7寸， 800*480; 65536). 觸摸式人機(jī)友好交互界面 |
自動(dòng)保護(hù) | 溫度過高或超出設(shè)定溫度值，加熱系統(tǒng)自動(dòng)關(guān)閉 |
自動(dòng)報(bào)警 | 制冷系統(tǒng)故障提示并報(bào)警與真空泄露故障報(bào)警 |
尺寸 | 90 cm (H)×74 cm (W)×110 cm (D) |
重量 | 120 Kg |
LI-2100是國際上第一款全自動(dòng)植物土壤真空抽提系統(tǒng)，也是國內(nèi)全自動(dòng)植物土壤真空抽提系統(tǒng)的領(lǐng)導(dǎo)品牌。LI-2100為客戶取得更為準(zhǔn)確的數(shù)據(jù)提供了有利的方法和保障。理加公司專注國產(chǎn)生態(tài)儀器的研發(fā)和生產(chǎn)，是國內(nèi)生態(tài)領(lǐng)域自主研發(fā)比較早、國產(chǎn)化比較好的一家公司。相信隨著加大研發(fā)的投入和市場及時(shí)間的積累，理加公司一定會(huì)生產(chǎn)出更多、更好的生態(tài)儀器，給更多的國內(nèi)外客戶提供更有價(jià)值的產(chǎn)品。
海外市場的拓展不是一條容易走的路，但理加會(huì)堅(jiān)定地走出去。
