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QuEChERS 農(nóng)殘SPE（提取部分）
Convenient and effective approach for determining pesticide residues in fruit, vegetables and other foods
QuEChERS 簡介:
QuEChERS 產(chǎn)品的設(shè)計意在克服高水分含量食品中多種農(nóng)藥殘留的問題，其名稱為Quick-Easy-Cheap-Effective-Rugged- Safe的縮寫。其將多個處理過程簡化、并擴大的提取范圍，是進行農(nóng)殘分析的理想選擇。
QuEChERS S方法分為兩個步驟：提取后提純。
提取產(chǎn)品使用MgSO4連同NaCl或者無水醋酸鈉（用于對基體敏感的組分，如滅菌丹、克菌丹等）去除樣品中的水分，包裝為50mL聚丙烯離心管，方便提取。
提純產(chǎn)品包含PSA （伯胺或仲胺）來去除有機酸和極性色素，一些產(chǎn)品中還將封尾C18和PSA組合來去除脂肪和固醇，或采用多孔石墨化碳來去除固醇和色素（如葉綠素）
優(yōu)勢：
★ 高通量—30分鐘內(nèi)分析8個樣品
★ 回收范圍廣（極性樣品、pH依賴性樣品），與傳統(tǒng)的SPE方式相比可分析較多的農(nóng)殘組分
★ 無需繁瑣的操作步驟和自動化設(shè)備
★ 減少溶劑的使用
★ 防止可能污染物的污染
★ 高回收率與準確的結(jié)果
★ 易用性好，并且有多種組合可選擇，方法開發(fā)便捷
| 貨號Cat. No. | 描述Description | 包裝Package Unit | 參考價格Price（RMB） |
| 60105-210 | 6g anhydrous MgSO4+1.5g anhydrous sodium acetate / 50mL | 250 Pack | 4176.00 |
| 60105-211 | 4g anhydrous MgSO4+1g anhydrous NaCl / 50mL | 250 Pack | 4176.00 |
| 60105-216 | 4g anhydrous MgSO4+1g sodium chloride+1g sodium citrate dehydrate+0.5g disodium citrate sesquihydrate / 50mL | 250 Pack | 8001.00 |
| 60105-212 | 6g anhydrous MgSO4+1.5g sodium chloride+1.5g sodium citrate dehydrate+0.75g disodium citrate sesquihydrate / 50mL | 250 Pack | 7641.00 |
| 60105-219 | 150mg anhydrous MgSO4+25mg PSA / 2mL | 100/PK | 1440.00 |
| 60105-220 | 150mg anhydrous MgSO4+25mg PSA+25mg C18 / 2mL | 100/PK | 1539.00 |
| 60105-221 | 150mg anhydrous MgSO4+25mg PSA+2.5mg graphitized carbon / 2mL | 100/PK | 1926.00 |
| 60105-222 | 150mg anhydrous MgSO4+25mg PSA+7.5mg graphitized carbon / 2mL | 100/PK | 1926.00 |
| 60105-202 | 150mg anhydrous MgSO4+50mg PSA+50mg graphitized carbon / 2mL | 100/PK | 1890.00 |
| 60105-203 | 150mg anhydrous MgSO4+50mg PSA / 2mL | 100/PK | 1395.00 |
| 60105-204 | 150mg anhydrous MgSO4+50mg PSA+50mg endcapped C18 / 2mL | 100/PK | 1557.00 |
| 60105-206 | 900mg anhydrous MgSO4+300mg PSA+150mg endcapped C18 / 15mL | 50/PK | 1998.00 |
| 60105-223 | 150mg anhydrous MgSO4+50mg PSA+50mg endcapped C18+50mg graphitized carbon / 2mL | 100/PK | 2016.00 |
| 60105-205 | 900mg anhydrous MgSO4+300mg PSA+150mg graphitized carbon / 15mL | 50/PK | 1998.00 |
| 60105-224 | 1200mg anhydrous MgSO4+400mg PSA / 15mL | 50/PK | 2061.00 |
| 60105-225 | 1200mg anhydrous MgSO4+400mg PSA+400mg endcapped C18 / 15mL | 50/PK | 2115.00 |
| 60105-226 | 1200mg anhydrous MgSO4+400mg PSA+400mg endcapped C18+ 400mg graphitized carbon / 15mL | 50/PK | 4221.00 |
| 60105-227 | 900mg anhydrous MgSO4+150mg PSA+150mg C18 / 15mL | 50/PK | 2016.00 |
| 60105-230 | 150mg anhydrous MgSO4+50mg PSA+50mg graphitized carbon / 15mL | 50/PK | 1926.00 |
| 60105-217 | 900mg anhydrous MgSO4+150mg PSA+45mg graphitized carbon / 15mL | 50/PK | 1350.00 |
| 60105-208 | 500mg PSA on bottom+250mg graphitized carbon on top+separated by a Teflon frit / 6mL | 30/PK | 1692.00 |
| 60105-215 | 900mg anhydrous MgSO4+150mg PSA / 15mL | 50/PK | 1989.00 |
| 60105-213 | 750mg anhydrous MgSO4+250mg PSA+250mg endcapped C18+250mg graphitized carbon / 15mL | 50/PK | 2673.00 |
| 60105-231 | 150mg anhydrous MgSO4+300mg PSA+150mg ChloroFiltr / 15mL | 50/PK | 3888.00 |
| 60105-207 | 400mg PSA on bottom+200mg graphitized carbon on top+separated by a Teflon frit / 6mL | 50/PK | 1647.00 |
| 60105-214 | 900mg anhydrous MgSO4+300mg PSA / 15mL | 50/PK | 1944.00 |
| 60105-209 | 500mg PSA on bottom+500mg graphitized carbon on top+separated by a Teflon frit / 6mL | 30/PK | 2448.00 |
| 60105-218 | 900mg anhydrous MgSO4+150mg PSA+15mg graphitized carbon / 15mL | 50/PK | 1449.00 |
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