CN113219027B - Method for quantitatively detecting potassium iodate - Google Patents
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Abstract
The present invention relates to a quantitative detection method for KIO 3 Is characterized in that: application of HCHO-NaHSO 3 ‑Na 2 SO 3 "pH clock reaction System as detection solution, KIO for different concentrations according to the System 3 Different responses, i.e. different implementations of induction time for KIO 3 Is a quantitative analysis of (a). para-KIO according to the invention 3 The quantitative analysis method has the characteristics of high accuracy, easiness in operation, convenience, quickness and the like.
Description
Technical Field
The invention relates to an analysis and detection method, in particular to a method for establishing HCHO-NaHSO 3 - Na 2 SO 3 "pH clock system as substrate, according to which KIO is used for different concentrations 3 Different responses, i.e. different induction times, are achieved for potassium iodate (KIO) 3 ) The quantitative analysis method of (2) belongs to the analytical chemistry field.
Background
Potassium iodate with molecular formula of KIO 3 Is an analytical reagent in chemical analysis. As an additive, for example, a redox titration standard solution is prepared and used as an oxidant. And performing microanalysis on elements such as tantalum. Also useful as complexing agents, masking agents, bacterial inhibitors, and the like. Can be used as livestock feed additive. The feed can be used as additive for regulating iodine deficiency. Used as wheat flour treating agent, dough modifier and salt iodizing agent. FDA (≡ 184.1635, 2000) specifies that the highest limit is 0.0075% (based on wheat flour) for bread. The national regulations can be used for solid beverage with the limit of 0.26-0.4 mg/kg. Can be used as iodized salt or medicament for preventing local thyropathy. In recent years, potassium iodate has been found to have an effect of inhibiting tumor growth in some cases as an antitumor drug. Thus for KIO 3 The detection of (c) becomes critical.
At present for KIO 3 The detection method of (2) comprises inductively coupled plasma mass spectrometry, atomic absorption method, spectrophotometry, electrochemical method, neutron activation method, chemiluminescence method and the like. However, such detection methods often require large equipment and are expensive to test and are not suitable for in-situ measurement. Therefore, it is necessary to find a detection and analysis method which has good detection effect and is simple and convenient and quick to operate.
Disclosure of Invention
The invention aims at KIO 3 Provides a new quantitative detection method, namely, HCHO-NaHSO is adopted 3 - Na 2 SO 3 "pH clock system is detection solution pair KIO 3 Quantitative detection method based on the pH clock system for KIO 3 A standard curve (working curve) method developed for the sensitive response of (a) a test sample. Specifically, "HCHO-NaHSO 3 - Na 2 SO 3 The pH clock reaction system is used as a detection solution, and a map of pH change along with time is recorded; when the pH clock reaction starts, the KIO to be detected with different concentrations is respectively carried out 3 The sample solution is added into the pH clock system in an equal volume, and the KIO to be detected is realized according to the difference of the induction time generated by the system when the concentration of the solution to be detected in the pH clock system is different 3 And (5) quantitatively detecting the sample.
According to KIO 3 Establishing a working curve according to the relation between the concentration and the induction time in the pH clock system; wherein the abscissa is KIO 3 Concentration in pH clock system, ordinate is induction time t, KIO in system 3 The concentration is 5.0X10 -4 mol/L to 2.5X10 -3 Between mol/L, the induction time t and KIO 3 Is linear in terms of concentration, thereby allowing for the detection of KIO in a sample 3 Is a quantitative detection of (a).
The quantitative detection method is different from the prior art in that the method applies HCHO-NaHSO 3 - Na 2 SO 3 "pH clock System as detection solution, and the System is used for KIO with different concentrations 3 The response to KIO is different, i.e. the induction time is different 3 Is a quantitative analysis of (a).
KIO 3 The concentration range to be detected in the detection solution (pH clock system) was 5.0X10 -4 -2.5×10 -3 mol/L。
KIO 3 When the pH value is detected in the detection solution (pH value clock system), the temperature of the pH value clock system is controlled to be any specific temperature in the range of 10-15 ℃.
By using the pH clock system, KIO 3 The concentration range that can be detected is the experimentally determined optimal concentration range. Within this concentration range, induction time vs. KIO 3 The concentration change has good response and the linear correlation coefficient is large. In addition, the concentration ranges of the components in the detection solution (pH clock system) are shown in table 1, and the optimal concentrations of the detection solution (pH clock system) obtained through a plurality of experiments are shown in table 2:
table 1: concentration of each component in a pH clock system
| HCHO(mol/ L) | NaHSO 3 (mol/L) | Na 2 SO 3 (mol/L) |
| 0.045-0.625 | 0.045-0.0625 | 0.0045-0.00625 |
Table 2: optimum concentration of each component in pH clock system
| HCHO(mol/ L) | NaHSO 3 (mol/L) | Na 2 SO 3 (mol/L) |
| 0.051 | 0.0495 | 0.00495 |
The specific experimental steps are as follows:
1. preparing 40mL of detection solution (pH clock system) according to the concentration range specified in Table 1, wherein the temperature is controlled to be a specific temperature value between 10 ℃ and 15 ℃ and is kept unchanged; the prepared working electrode (pH composite electrode, lei Ci, E-331) was inserted into the solution, the other end of the working electrode was connected to a computer through a potential/temperature/pH integrated tester (ZHFX-595, jiaxing Disheng electronic technologies Co., ltd.), and after the chemical signal acquisition and analysis program in the computer was opened to set the acquisition time and sampling speed, the start key was clicked rapidly to monitor the pH of the solution. The computer records the acquired pH profile, i.e., pH clock profile, over time. When the substance needs to be detected, the substance to be detected is rapidly added at the same time when the reaction of the pH clock system is started, and the pH clock pattern of the pH change along with time is recorded in the same way.
Basic parameters of the pH clock profile include:
induction time: the time required from the start of the reaction of the pH clock system to the pH jump.
pH jump range: the pH corresponding to the beginning of the pH jump is changed to the pH corresponding to the end of the pH jump.
2. Build-up of KIO in detection solutions 3 Working curve of concentration versus pH induction time
Preparing KIO with concentration of 0.5mol/L to 2.5mol/L by using distilled water as solvent 3 The solution is taken as a sample solution, and the reaction starts in a pH clock systemSimultaneously, 40 mu L of the series of sample solutions with different concentrations are respectively added into a pH clock system of 40mL by a pipette, so that KIO in the system 3 The concentration is 5.0X10 -4 mol/L to 2.5X10 -3 mol/L; the response variable of the pH clock system is the induction time and is marked as t; KIO when in system 3 When the concentration is different, the induction time t of the pH clock system is also different; by KIO in the system 3 Concentrations are plotted on the abscissa and t is plotted on the ordinate; KIO in the system 3 The concentration is 5.0X10 -4 mol/L to 2.5X10 -3 Between mol/L, the pH clock system induction time t and KIO 3 The concentration of (2) is linear once to obtain a working curve.
3. For KIO 3 Quantitative detection of (2)
Adding a sample to be detected with unknown concentration into the pH clock system of the detection solution at the beginning of the reaction of the pH clock system, measuring the induction time (t) of the corresponding pH clock system, and obtaining the KIO in the detection system according to the corresponding relation between t and the concentration on the working curve 3 Further calculate the KIO in the sample to be measured 3 Is a concentration of (3).
Drawings
FIG. 1 is a graph showing the pH of a detection solution (pH clock system) with time when a sample to be detected is not added in example 1.
FIG. 2 is a diagram of example 1, incorporating 5.0X10 s -4 mol/LKIO 3 Then, a time-dependent profile of the pH value of the solution (pH clock system) was examined.
FIG. 3 is a schematic diagram of example 1, incorporating 1.0X10 s -3 mol/L KIO 3 Then, a time-dependent profile of the pH value of the solution (pH clock system) was examined.
FIG. 4 shows the pH induction time t and KIO in example 1 3 Working curves between concentrations.
FIG. 5 is a graph showing the pH of the test solution (pH clock system) with time when no sample to be tested was added in example 2.
FIG. 6 is a schematic diagram of example 2, incorporating 1.5X10 -3 mol/L KIO 3 After that, the pH value of the solution (pH clock system) is detected with timeA profile of changes.
FIG. 7 is a diagram of example 2 incorporating 2.0X10 s -3 mol/L KIO 3 Then, a time-dependent profile of the pH value of the solution (pH clock system) was examined.
FIG. 8 is a graph showing the pH induction time t and KIO in example 2 3 Working curves between concentrations.
FIG. 9 is a graph showing the pH of the test solution (pH clock system) with time when no sample to be tested was added in example 3.
FIG. 10 is a diagram of example 3, incorporating 2.0X10 s -3 mol/LKIO 3 Then, a time-dependent profile of the pH value of the solution (pH clock system) was examined.
FIG. 11 is a diagram of example 3, incorporating 2.5X10 -3 mol/L KIO 3 Then, a time-dependent profile of the pH value of the solution (pH clock system) was examined.
FIG. 12 is a graph showing the pH induction time t and KIO in example 3 3 Working curves between concentrations.
Detailed Description
Example 1
Application to HCHO-NaHSO 3 - Na 2 SO 3 "pH clock system as substrate as detection solution, for KIO 3 Quantitative analysis was performed. Adding KIO with equal volume and no concentration 3 The sample solution is put into a pH clock system to establish KIO in a detection system 3 The working curve (such as linear relation) of the relation between the concentration and the induction time achieves the detection of the KIO in the pH clock system 3 To further calculate KIO in the test sample 3 Is a concentration of (3).
(1) Preparing a detection solution
Firstly, distilled water is used for preparing HCHO solution with the concentration of 0.2mol/L and NaHSO with the concentration of 0.1mol/L respectively 3 And 0.01mol/L Na 2 SO 3 Is a mixed solution of (a) and (b). To a 50mL small beaker was added 10.0mL of distilled water and 19.8mL of NaHSO in sequence 3 - Na 2 SO 3 Mixing the solution, 10.2mL of 0.2mol/L HCHO solution to ensure "HCHO-NaHSO 3 - Na 2 SO 3 "the concentration of each component in the pH clock system is HCHO0.051mol/L、NaHSO 3 0.0495mol/L、Na 2 SO 3 0.00495mol/L, total volume 40mL, temperature was controlled at 14 ℃.
Simultaneously distilled water is used as solvent to prepare a series of KIO with different concentrations 3 Sample solution.
(2) Obtaining a pH clock pattern
The profile of the pH of the prepared test solution over time was recorded by a computer equipped with a chemical signal acquisition analysis program (no test sample added). As shown in fig. 1. The pH induction time was 144.2s for the blank. Two sets of detection solutions with the same concentration of each component as the detection solution are additionally prepared. For one of the groups, 40. Mu.L of 0.5mol/L KIO was added to the pH clock system of 40mL at the same time as the reaction was started 3 Sample solution, so that KIO 3 The concentration in the detection solution was 5.0X10 -4 mol/L, KIO added 3 Such that the induction time was extended to 184s as shown in FIG. 2; for the other group, 40 μL1.0mol/L KIO was added to the pH clock system of 40mL at the same time as the reaction was started 3 Sample solution, so that KIO 3 The concentration in the detection solution was 1.0X10 -3 mol/L, KIO added 3 Such that the induction time became 237s as shown in FIG. 3. FIGS. 2 and 3 demonstrate the detection of KIO in solution 3 The difference in concentration of (2) leads to a difference in the induction time of the occurrence of the pH clock system. When KIO in a detection system 3 Is at a concentration of 5.0X10 -4 mol/L to 2.5X10 -3 The results of different induction times of the pH clock system due to different concentrations between mol/L can be observed.
(3) Quantitative detection
According to KIO 3 The concentration in the assay system versus the induction time establishes an operating curve as shown in FIG. 4, wherein the abscissa is KIO in the pH clock system 3 Concentration c (KIO) 3 ) The ordinate is the induction time t, when KIO is detected in the system 3 Is at a concentration of 5.0X10 -4 mol/L to 2.5X10 -3 Between mol/L, the induction time t and KIO 3 Concentration c (KIO) 3 ) In a linear relationship, the linear equation is t= 66400c (KIO 3 )+160.4,R 2 = 0.9711. Thus, KIO in the sample can be realized 3 Is a quantitative detection of (a).
Example 2:
(1) Preparing a detection solution
Firstly, distilled water is used for preparing HCHO solution with the concentration of 0.2mol/L and NaHSO with the concentration of 0.1mol/L respectively 3 And 0.01mol/L Na 2 SO 3 Is a mixed solution of (a) and (b). 9.5mL of distilled water solution and 20.0mL of NaHSO were added sequentially to a 50mL small beaker 3 - Na 2 SO 3 Mixing the solution, 10.5mL of 0.2mol/L HCHO solution to ensure "HCHO-NaHSO 3 - Na 2 SO 3 "the concentration of each component in the pH clock system is HCHO 0.0525mol/L, naHSO 3 0.05mol/L、Na 2 SO 3 0.005mol/L, total volume of 40mL, and temperature was controlled at 12 ℃.
Simultaneously distilled water is used as solvent to prepare a series of KIO with different concentrations 3 Sample solution.
(2) Obtaining a pH clock pattern
The profile of the pH of the prepared test solution over time was recorded by a computer equipped with a chemical signal acquisition analysis program (no test sample added), as shown in FIG. 5. The pH induction time was 144.1s for the blank. Two sets of detection solutions with the same concentration of each component as the detection solution are additionally prepared. For one of the groups, at the same time as the reaction started, 40. Mu.L 1.5mol/L KIO was added to the pH clock system of 40mL 3 Sample solution, so that KIO 3 The concentration in the detection solution was 1.5X10 -3 mol/L, KIO added 3 Such that the induction time was prolonged to 260s as shown in fig. 6; for the other group, 40 μL2.0mol/L KIO was added to the pH clock system of 40mL at the same time as the reaction was started 3 Sample solution, so that KIO 3 The concentration in the detection solution was 2.0X10 -3 mol/L, KIO added 3 Such that the induction time became 301s as shown in fig. 7. FIGS. 6 and 7 demonstrate the detection of KIO in solution 3 The difference in concentration of (2) leads to a difference in the induction time of the occurrence of the pH clock system. When KIO in a detection system 3 Is at a concentration of 5.0X10 -4 mol/L to 2.5X10 -3 mol/L, concentrationDifferent results can be observed, which lead to different induction times for the appearance of the pH clock system.
(3) Quantitative detection
According to KIO 3 The concentration in the assay system versus the induction time establishes an operating curve as shown in FIG. 8, wherein the abscissa is KIO in the pH clock system 3 Concentration c (KIO 3), ordinate is induction time t, when KIO is detected in the system 3 Is at a concentration of 5.0X10 -4 mol/L to 2.5X10 -3 Between mol/L, the induction time t and KIO 3 Concentration c (KIO) 3 ) In linear relation, the linear equation is t=66800 c (KIO 3 )+158.6,R 2 =0.98. Thus, KIO in the sample can be realized 3 Is a quantitative detection of (a).
Example 3:
(1) Preparing a detection solution
Firstly, distilled water is used for preparing HCHO solution with the concentration of 0.2mol/L and NaHSO with the concentration of 0.1mol/L respectively 3 And 0.01mol/L Na 2 SO 3 Is a mixed solution of (a) and (b). To a 50mL small beaker was added 10.2mL of distilled water solution, 20.0mL of NaHSO in sequence 3 - Na 2 SO 3 Mixing the solution, 9.8mL of 0.2mol/L HCHO solution to ensure "HCHO-NaHSO 3 - Na 2 SO 3 "the concentration of each component in the pH clock system is HCHO 0.049mol/L, naHSO 3 0.05mol/L、Na 2 SO 3 0.005mol/L, total volume of 40mL, and temperature was controlled at 12 ℃.
Simultaneously distilled water is used as solvent to prepare a series of KIO with different concentrations 3 Sample solution.
(2) Obtaining a pH clock pattern
The profile of the pH of the prepared test solution over time was recorded by a computer equipped with a chemical signal acquisition analysis program (no test sample added). As shown in fig. 9. The pH induction time was 144s for the blank. Two sets of detection solutions with the same concentration of each component as the detection solution are additionally prepared. For one of the groups, at the same time as the reaction started, 40. Mu.L 2.0mol/L KIO was added to the pH clock system of 40mL 3 Sample solution, so that KIO 3 The concentration in the detection solution was 2.0X10 -3 mol/L, KIO added 3 Such that the induction time is prolonged to 301s as shown in fig. 10; for the other group, 40 μL2.5mol/L KIO was added to the pH clock system of 40mL at the same time as the reaction was started 3 Sample solution, so that KIO 3 The concentration in the detection solution was 2.5X10 -3 mol/L, KIO added 3 Such that the induction time became 3181s as shown in fig. 11. FIGS. 10 and 11 demonstrate the detection of KIO in solution 3 The difference in concentration of (2) leads to a difference in the induction time of the occurrence of the pH clock system. When KIO in a detection system 3 Is at a concentration of 5.0X10 -4 mol/L to 2.5X10 -3 The results of different induction times of the pH clock system due to different concentrations between mol/L can be observed.
(3) Quantitative detection
According to KIO 3 The concentration in the assay system versus the induction time is plotted as shown in FIG. 12, where the abscissa is KIO in the pH clock system 3 Concentration c (KIO) 3 ) The ordinate is the induction time t, when KIO is detected in the system 3 Is at a concentration of 5.0X10 -4 mol/L to 2.5X10 -3 Between mol/L, the induction time t and KIO 3 Concentration c (KIO) 3 ) In a linear relationship, the linear equation is t= 66600c (KIO 3 )+158.7,R 2 =0.981. Thus, KIO in the sample can be realized 3 Is a quantitative detection of (a).
Claims (5)
1. KIO (kit) 3 The quantitative detection method of (2) is characterized in that:
distilled water is used as a solvent to prepare a solution of a sample to be detected;
application of HCHO-NaHSO 3 - Na 2 SO 3 The pH clock reaction system is used as a detection solution, and a map of pH change along with time is recorded; the temperature of the pH clock system is controlled at any specific temperature within the range of 10-15 ℃, when the pH clock reaction starts, the equal volumes of a series of sample solutions to be detected with different concentrations are respectively added into the pH clock system, and when the concentrations of the solutions to be detected in the pH clock system are different, the systemThe different induction time is generated, so that quantitative detection of the sample to be detected is realized;
the molar concentration ranges of the components in the detection solution are as follows: HCHO0.045-0.0625mol/L, naHSO 3 0.045-0.0625mol/L、Na 2 SO 3 0.0045-0.00625mol/L；
The sample to be detected is KIO 3 A solution.
2. The quantitative detection method according to claim 1, wherein: establishing a working curve according to the relation between the concentration of the solution to be detected in the pH clock system and the induction time; wherein the abscissa is the solution KIO to be detected 3 Concentration in pH clock system, ordinate is induction time t; KIO in the system 3 The concentration is 5.0X10 -4 mol/L to 2.5X10 -3 Between mol/L, the induction time t and KIO 3 Is linear in relation to the concentration of KIO in the sample 3 Is a quantitative detection of (a).
3. The quantitative detection method according to claim 1 or 2, characterized in that: the molar concentration of each component in the detection solution is HCHO 0.051mol/L, naHSO 3 0.0495mol/L、Na 2 SO 3 0.00495mol/L。
4. The quantitative detection method according to claim 1 or 2, characterized in that: KIO (kit) 3 The concentration of the solution in the detection solution was detectable in the range of 5.0X10 -4 mol/L to 2.5X10 -3 mol/L。
5. The quantitative detection method according to claim 1 or 2, characterized in that: detection of KIO 3 The temperature of the pH clock system was controlled at 12℃at the time of solution.
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU6234196A (en) * | 1995-06-26 | 1997-01-30 | Brf International | Method for quantitative measurement of an enzyme linked immunosorbent assay |
| WO1998037409A1 (en) * | 1997-02-20 | 1998-08-27 | Biosensor Technology Limited | Method of electrochemical detection of immunoactive macromolecules |
| JP2006130684A (en) * | 2004-11-02 | 2006-05-25 | Satoshi Akaha | Tarnishable scientific interior |
| CN1888908A (en) * | 2006-07-15 | 2007-01-03 | 桂林工学院 | Timing method for measuring micro-protein |
| JP2011085531A (en) * | 2009-10-16 | 2011-04-28 | Hokuto Denko Kk | Method and device for measuring cadmium in food |
| CN105466981A (en) * | 2015-12-29 | 2016-04-06 | 湖南省食品质量监督检验研究院 | Method for identifying lactogenesis adulteration based on nonlinear chemical fingerprint chromatography technique |
| CN106950265A (en) * | 2017-05-22 | 2017-07-14 | 安徽大学 | Method for detecting morin |
| CN107228887A (en) * | 2017-05-22 | 2017-10-03 | 安徽大学 | Method for detecting p-coumaric acid |
| CN107607598A (en) * | 2017-11-09 | 2018-01-19 | 湖南省食品质量监督检验研究院 | Lycium ruthenicum true and false mirror method for distinguishing based on nonlinear chemical fingerprint technology |
| CN108490044A (en) * | 2018-03-21 | 2018-09-04 | 安徽大学 | A kind of detection method of syringic acid |
| CN111638303A (en) * | 2020-06-08 | 2020-09-08 | 安徽大学 | Distinguish metal ion Al3+And Zn2+Method (2) |
| CN111766277A (en) * | 2020-06-09 | 2020-10-13 | 安徽大学 | Distinguishing metal ion Fe3+And Cu2+Method (2) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7790113B2 (en) * | 2006-04-04 | 2010-09-07 | Photonic Biosystems, Inc. | Visual, continuous and simultaneous measurement of solution ammonia and hydrogen ion concentration |
| US20110206813A1 (en) * | 2010-02-22 | 2011-08-25 | Eumed Biotechnology Co., Ltd. | Method to determine oxidative and reductive substances in food, testing specimen and measuring device for the same method |
-
2021
- 2021-05-07 CN CN202110497307.7A patent/CN113219027B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU6234196A (en) * | 1995-06-26 | 1997-01-30 | Brf International | Method for quantitative measurement of an enzyme linked immunosorbent assay |
| WO1998037409A1 (en) * | 1997-02-20 | 1998-08-27 | Biosensor Technology Limited | Method of electrochemical detection of immunoactive macromolecules |
| JP2006130684A (en) * | 2004-11-02 | 2006-05-25 | Satoshi Akaha | Tarnishable scientific interior |
| CN1888908A (en) * | 2006-07-15 | 2007-01-03 | 桂林工学院 | Timing method for measuring micro-protein |
| JP2011085531A (en) * | 2009-10-16 | 2011-04-28 | Hokuto Denko Kk | Method and device for measuring cadmium in food |
| CN105466981A (en) * | 2015-12-29 | 2016-04-06 | 湖南省食品质量监督检验研究院 | Method for identifying lactogenesis adulteration based on nonlinear chemical fingerprint chromatography technique |
| CN106950265A (en) * | 2017-05-22 | 2017-07-14 | 安徽大学 | Method for detecting morin |
| CN107228887A (en) * | 2017-05-22 | 2017-10-03 | 安徽大学 | Method for detecting p-coumaric acid |
| CN107607598A (en) * | 2017-11-09 | 2018-01-19 | 湖南省食品质量监督检验研究院 | Lycium ruthenicum true and false mirror method for distinguishing based on nonlinear chemical fingerprint technology |
| CN108490044A (en) * | 2018-03-21 | 2018-09-04 | 安徽大学 | A kind of detection method of syringic acid |
| CN111638303A (en) * | 2020-06-08 | 2020-09-08 | 安徽大学 | Distinguish metal ion Al3+And Zn2+Method (2) |
| CN111766277A (en) * | 2020-06-09 | 2020-10-13 | 安徽大学 | Distinguishing metal ion Fe3+And Cu2+Method (2) |
Non-Patent Citations (5)
| Title |
|---|
| Clock Reaction Revisited: Catalyzed Redox Substrate-Depletive Reactions;Taweetham Limpanuparb 等;《Journal of Chemical Education》;第96卷;812-818 * |
| Landolt计时法测定人发中的铁;刘海澜\n\n\n,依慧;河南大学学报(自然科学版)(02);81-84 * |
| 时钟反应系 HCHO-HSO_3~--SO_3~(2-)的 pH 突跃法测定 HSO_3~-盐的含量;黄承高;胡奇林;赵福祯;马璀;朱妙丽;;分析化学(07);619-621 * |
| 钟反应初探(Ⅰ)――碱在甲醛-亚硫酸盐-亚硫酸氢盐反应中的作用;颜志森;姜敏;;华侨大学学报(自然科学版)(02);135-140 * |
| 鲜奶掺假检验方法研究进展;方悦;董文宾;樊成;;食品研究与开发(02);201-204 * |
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