这项初步研究的重点是对60种不同商品谷物面粉样品的元素分析,包括各种类型的精炼产品,研究过渡金属和微量元素。所有样品首先用微波消解系统消化,然后通过位于ISO级6洁净室中的三重四极(TQ)电感耦合等离子体质谱仪(ICP-MS-QQQ)进行分析。大多数元素的最小值(Li,Be,Na,Ca,V,Cr,Mn,Fe,Co,Ni,Zn,Ga,As,Se,Rb,高级)是小麦粉“00”型和小麦粉“0”型(B,Na,Mg,Al,Cu,Ag,Cd,In,Cs,Pb,Bi)。相反,这些元素的最大值存在于全麦面粉中(B,Mg,K,Ca,Mn,Zn,Ga,Rb,Sr,Ba)和小麦粉“0”型(Na,Al,V,Cr,Fe,Co,Ni,作为)。相关稀土元素(REE),由于在洁净室中使用了TQ,因此它们都显示出彼此相似的值,并且不低于检测极限。最终目的是创建一个大型数据库,具有高数据库和易于扩展的功能,将来可用于分析未知面粉样品并建立可追溯性分析。这项工作的目的是找到不同参数函数中分析元素的一些趋势,如铣削程度或地理起源,也有统计学的观点。
This preliminary study is focused on an elemental analysis of 60 samples of different commercial grains\' flour, including various typologies of refined product, researching transition metals and trace elements. All the samples were first digested with a microwave digestion system and then analyzed by a triple quadrupole (TQ) inductively coupled plasma mass spectrometer (ICP-MS-QQQ) located in a Clean Room ISO class 6. The minimum value of most of the elements (Li, Be, Na, Ca, V, Cr, Mn, Fe, Co, Ni, Zn, Ga, As, Se, Rb, Sr) are in the wheat flour \"00\" type and in the wheat flour \"0\" type (B, Na, Mg, Al, Cu, Ag, Cd, In, Cs, Pb, Bi). On the opposite, the maximum value of these elements is found in whole wheat flour (B, Mg, K, Ca, Mn, Zn, Ga, Rb, Sr, Ba) and in the wheat flour \"0\" type (Na, Al, V, Cr, Fe, Co, Ni, As). Relating rare-earth elements (REE), all of them show value similar to each other and not under the detection limits thanks to the use of a TQ in the clean room. The final aim is to create a large database, with a high data bank and easily enlargeable, that could be used in future to analyze unknown flour samples and to set up traceability analysis. The purpose of this work is to find some trends of analyzed elements in function of different parameters, such as milling degree or geographical origin, also with a statistical point of view.