2，4-滴丁酯对五昧子药害的防治

研究2,4-滴丁酯对五味子药害的有效防治方法。采用质量分数0．0057mg／kg芸苔素内酯和10mg／kg 6-苄氨基嘌呤2种促进生长的植物生长调节剂适时预防和治疗。结果表明：2种药剂均有较好的预防和治疗效果,预防效果优于治疗效果,防治结合效果更佳,预防有效期达10d左右,可指导农业生产。     

气相色谱-质谱法测定溶剂型涂料中三氯苯的含量

建立了溶剂型涂料中三氯苯3种同分异构体(1,3,5-三氯苯、1,2,4-三氯苯、1,2,3-三氯苯)的气相色谱-质谱检测方法。研究了丙酮、正己烷、四氢呋喃和乙酸乙酯4种溶剂对涂料中三氯苯的提取以及分离效果。配制三氯苯浓度分别为1 mg/L、5 mg/L、10 mg/L、20 mg/L、50 mg/L、100 mg/L的标准溶液,以选择离子(SIM)模式进行定性及定量分析。以三氯苯提取m/z=180.0离子峰面积为横坐标,以对应的三氯苯浓度(mg/L)为纵坐标,绘制标准曲线。3种同分异构体对应曲线的相关系数均大于0.999,在1~100 mg/L浓度范围内线性良好;样品平均回收率为95.9%~107.6%;相对标准偏差(RSD,n=6)在1.44%~4.33%之间。样品中1,3,5-三氯苯、1,2,4-三氯苯、1,2,3-三氯苯检出限(LOD,S/N=3)分别为2 mg/kg、2 mg/kg、2 mg/kg。     

ASE-GC/MS法测定塑料中5种氯烃类化合物

建立了加速溶剂萃取-气相色谱/质谱联用法(ASE-GC/MS)用于检测塑料中5种氯烃类化合物的含量,并比较了萃取方法、萃取溶剂及萃取温度对萃取效果的影响。结果表明:5种氯烃类化合物的质量浓度在1.0²5.0mg/L范围内分别与其对应的峰面积呈线性关系,测定下限(10倍信噪比)均为1.0 mg/kg;另外,在1.00、5.00、10.00 mg/kg 3个添加浓度水平下,5种氯烃类化合物的回收率在83.2%25.0mg/L范围内分别与其对应的峰面积呈线性关系,测定下限(10倍信噪比)均为1.0 mg/kg;另外,在1.00、5.00、10.00 mg/kg 3个添加浓度水平下,5种氯烃类化合物的回收率在83.2%¹01.2%之间,相对标准偏差(RSD)小于5%。该方法准确度高,精密度好,能够满足实际检测需求。     

超声萃取气相色谱-质谱联用法快速测定儿童产品中2种有机磷阻燃剂

建立了气相色谱-质谱(GC-MS)联用法快速测定儿童产品中2种有机磷阻燃剂,磷酸苯基(二叔丁基苯基)酯(DBPP)和2,2-双氯甲基-三亚甲基-双[双(2-氯乙基)磷酸脂(V6)的分析方法。考察了不同萃取方法,不同萃取溶液,不同极性色谱柱对DBPP和V6分离检测的影响。采用丙酮作为萃取溶剂,超声萃取样品中DBPP和V6,选用DB-5MS色谱柱进行目标物分离,质谱定量检测。结果显示,DBPP在0.01¹0 mg/kg内,线性关系良好(R2>0.999 1),重现性良好。V6在110 mg/kg内,线性关系良好(R2>0.999 1),重现性良好。V6在1³0 mg/kg内,线性关系良好(R2>0.999 3),重现性良好。在0.0130 mg/kg内,线性关系良好(R2>0.999 3),重现性良好。在0.01¹0 mg/kg添加水平内DBPP的平均回收率为89.3%10 mg/kg添加水平内DBPP的平均回收率为89.3%⁹4.2%,相对标准偏差3.8%94.2%,相对标准偏差3.8%⁴.3%。在14.3%。在1³0 mg/kg V6添加水平内的平均回收率为87.2%30 mg/kg V6添加水平内的平均回收率为87.2%⁹5.7%,相对标准偏差4.8%95.7%,相对标准偏差4.8%⁶.5%。DBPP和V6的方法检出限(S/N>10)分别为0.01,1 mg/kg。该方法快速简捷,灵敏度高,定性准确,易于操作,适用于进出口儿童产品中的DBPP和V6日常检测工作。     

超声萃取气相色谱-质谱联用法快速测定儿童产品中2种有机磷阻燃剂

建立了气相色谱-质谱(GC-MS)联用法快速测定儿童产品中2种有机磷阻燃剂,磷酸苯基(二叔丁基苯基)酯(DBPP)和2,2-双氯甲基-三亚甲基-双[双(2-氯乙基)磷酸脂(V6)的分析方法。考察了不同萃取方法,不同萃取溶液,不同极性色谱柱对DBPP和V6分离检测的影响。采用丙酮作为萃取溶剂,超声萃取样品中DBPP和V6,选用DB-5MS色谱柱进行目标物分离,质谱定量检测。结果显示,DBPP在0.01~10 mg/kg内,线性关系良好(R20.999 1),重现性良好。V6在1~30 mg/kg内,线性关系良好(R20.999 3),重现性良好。在0.01~10 mg/kg添加水平内DBPP的平均回收率为89.3%~94.2%,相对标准偏差3.8%~4.3%。在1~30 mg/kg V6添加水平内的平均回收率为87.2%~95.7%,相对标准偏差4.8%~6.5%。DBPP和V6的方法检出限(S/N10)分别为0.01,1 mg/kg。该方法快速简捷,灵敏度高,定性准确,易于操作,适用于进出口儿童产品中的DBPP和V6日常检测工作。     

GC-MS测定纺织品中禁用芳香胺含量的不确定度评定

本文按照《GB/T17592.1-1998纺织品禁用偶氮染料的检测方法气相色谱/质谱法》对测定纺织品中禁用芳香胺含量的不确定度进行了评定,分析和量化了影响测定结果的不确定度分量,将不确定度分量合成,得到了24种禁用芳香胺中日常检出频率较高的2-萘胺、联苯胺、2,4-二氨基甲苯含量的扩展不确定分别为2.128mg/kg、2.302 mg/kg、4.778 mg/kg。     

气相色谱-质谱联用法测定婴幼儿地垫中甲酰胺残留量

建立了一种气相色谱-质谱联用(GC-MS)测定婴幼儿地垫中甲酰胺残留量的检测方法,考察了提取溶剂、提取方法、溶剂体积、提取时间和色谱柱对甲酰胺提取效果的影响。结果表明:在0.5～50 mg/L范围内,甲酰胺浓度与色谱峰面积呈良好的线性关系,线性相关系数r0.995,方法检出限为1.0 mg/kg;2.5、10、50 mg/kg3种添加水平下的平均回收率分别为89.5%、91.2%、93.3%,相对标准偏差(RSD)分别为3.62%、4.40%、5.32%。将该方法应用于实际样品的测定,可取得满意效果。     

GC-MS/MS法检测聚氨酯泡沫塑料中14种有机磷酸酯阻燃剂

基于气相色谱-串联质谱法（GC-MS/MS）,建立了聚氨酯泡沫塑料中14种有机磷酸酯阻燃剂残留的检测方法,采用丙酮超声提取并浓缩,再经定容过滤后用气相色谱-串联质谱测定,外标法定量。通过参数优化,结果表明,磷酸三（2-氯乙基）酯（TCEP）和磷酸三间甲苯酯（TMCP）在0.02～0.2 mg/L、磷酸三（丁氧基乙基）酯（TBEP）在0.05～0.5 mg/L、其余11种有机磷酸酯在0.01～0.1 mg/L梯度浓度内具有良好线性关系（线性相关系数>0.995）,TCEP和TMCP的定量限为0.33 mg/kg,检出限为0.10 mg/kg;TBEP的定量限为0.83 mg/kg,检出限为0.25 mg/kg;其余11种有机磷酸酯的定量限为0.17 mg/kg,检出限为0.05 mg/kg。三梯度加标平行试验加标回收率介于87.0%～108.1%之间,相对标准偏差介于2.5%～10.6%之间。     

顶空气相色谱法测定食品用洗涤剂中的1,4-二噁烷

本文探究了顶空气相色谱法测定食品用洗涤剂中的1,4-二噁烷含量的测定方法。在0.5mg/kg～30mg/kg范围内,1,4-二噁烷与4-甲基-1,3-二噁烷内标物的色谱峰面积比值与浓度比值具有良好的线性关系,相关系数为0.9978。样品在1mg/kg、5mg/kg和20mg/kg浓度加标时,回收率范围为96.7%～110.5%,相对标准偏差为1.4%～4.3%。精密度测定时相对标准偏差为2.8%(n=6)。对20批次市售的不同品牌不同批次的食品用洗涤剂进行检测分析,结果显示有10批次检出值高于检测下限值,检测值在0.56mg/kg～2.61mg/kg。该方法可为食品用洗涤剂中1,4-二噁烷的测定提供参考依据。     

高效液相色谱法测定化妆品中7种4-羟基苯甲酸酯

建立了对膏霜类、乳液类、水类、啫喱类和粉类化妆品产品4-羟基苯甲酸丙酯、4-羟基苯甲酸异丙酯、4-羟基苯甲酸丁酯、4-羟基苯甲酸异丁酯、4-羟基苯甲酸苯酯、4-羟基苯甲酸苄酯、4-羟基苯甲酸戊酯的高效液相色谱测定方法。样品经Agilent Poroshell C18(2.7μm,10 mm×4.6 mm)色谱柱,以乙腈/水为流动相进行检测。在优化条件下,7种4-羟基苯甲酸酯的在0.10~50.0 mg/L范围内线性良好,相关系数(R~2)均0.999,方法回收率为85.1%~106%。该方法检出限(波长252 nm,S/N=3)均为2 mg/kg,方法定量限(波长252 nm,S/N=10)均为6 mg/kg。该方法操作简便,灵敏度高,可满足化妆品中7种4-羟基苯甲酸酯的测定。     

Insulin like growth factor-1 (IGF-1) causes overproduction of IL-8, an angiogenic cytokine and stimulates neovascularization in isoproterenol-induced myocardial infarction in rats

Angiogenesis factors are produced in response to hypoxic or ischemic insult at the site of pathology, which will cause neovascularization. Insulin like growth factor-1 (IGF-1) exerts potent proliferative, angiogenic and anti-apoptotic effects in target tissues. The present study was aimed to evaluate the effects of IGF-1 on circulating level of angiogenic cytokine interleukin-8 (IL-8), in experimentally-induced myocardial ischemia in rats. Male Sprague-Dawley rats were divided into control, IGF-1 treated (2 μg/kg/day subcutaneously, for 5 and 10 days), isoproterenol (ISO) treated (85 mg/kg, subcutaneously for two days) and ISO with IGF-1 treated (for 5 and 10 days). Heart weight, serum IGF-1, IL-8 and cardiac marker enzymes (CK-MB and LDH) were recorded after 5 and 10 days of treatment. Histopathological analyses of the myocardium were also done. There was a significant increase in serum cardiac markers with ISO treatment indicating myocardial infarction in rats. IGF-1 level increased significantly in ISO treated groups and the level of IGF-1 was significantly higher after 10 days of treatment. IL-8 level increased significantly after ISO treatment after 5 and 10 days and IGF-1 concurrent treatment to ISO rats had significantly increased IL-8 levels. Histopathologically, myocyte necrosis and nuclear pyknosis were reduced significantly in IGF-1 treated group and there were numerous areas of capillary sprouting suggestive of neovascularization in the myocardium. Thus, IGF-1 protects the ischemic myocardium with increased production of circulating angiogenic cytokine, IL-8 and increased angiogenesis.     

Analysis of Biomechanical Parameters of Muscle Soleus Contraction and Blood Biochemical Parameters in Rat with Chronic Glyphosate Intoxication and Therapeutic Use of C60 Fullerene

The widespread use of glyphosate as a herbicide in agriculture can lead to the presence of its residues and metabolites in food for human consumption and thus pose a threat to human health. It has been found that glyphosate reduces energy metabolism in the brain, its amount increases in white muscle fibers. At the same time, the effect of chronic use of glyphosate on the dynamic properties of skeletal muscles remains practically unexplored. The selected biomechanical parameters (the integrated power of muscle contraction, the time of reaching the muscle contraction force its maximum value and the reduction of the force response by 50% and 25% of the initial values during stimulation) of muscle soleus contraction in rats, as well as blood biochemical parameters (the levels of creatinine, creatine phosphokinase, lactate, lactate dehydrogenase, thiobarbituric acid reactive substances, hydrogen peroxide, reduced glutathione and catalase) were analyzed after chronic glyphosate intoxication (oral administration at a dose of 10 μg/kg of animal weight) for 30 days. Water-soluble C₆₀ fullerene, as a poweful antioxidant, was used as a therapeutic nanoagent throughout the entire period of intoxication with the above herbicide (oral administration at doses of 0.5 or 1 mg/kg). The data obtained show that the introduction of C₆₀ fullerene at a dose of 0.5 mg/kg reduces the degree of pathological changes by 40–45%. Increasing the dose of C₆₀ fullerene to 1 mg/kg increases the therapeutic effect by 55–65%, normalizing the studied biomechanical and biochemical parameters. Thus, C₆₀ fullerenes can be effective nanotherapeutics in the treatment of glyphosate-based herbicide poisoning.     

Improvement Effects of Myelophil on Symptoms of Chronic Fatigue Syndrome in a Reserpine-Induced Mouse Model

Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is associated with various symptoms, such as depression, pain, and fatigue. To date, the pathological mechanisms and therapeutics remain uncertain. The purpose of this study was to investigate the effect of myelophil (MYP), composed of Astragali Radix and Salviae miltiorrhizae Radix, on depression, pain, and fatigue behaviors and its underlying mechanisms. Reserpine (2 mg/kg for 10 days, intraperitoneally) induced depression, pain, and fatigue behaviors in mice. MYP treatment (100 mg/kg for 10 days, intragastrically) significantly improved depression behaviors, mechanical and thermal hypersensitivity, and fatigue behavior. MYP treatment regulated the expression of c-Fos, 5-HT1A/B receptors, and transforming growth factor β (TGF-β) in the brain, especially in the motor cortex, hippocampus, and nucleus of the solitary tract. MYP treatment decreased ionized calcium binding adapter molecule 1 (Iba1) expression in the hippocampus and increased tyrosine hydroxylase (TH) expression and the levels of dopamine and serotonin in the striatum. MYP treatment altered inflammatory and anti-oxidative-related mRNA expression in the spleen and liver. In conclusion, MYP was effective in recovering major symptoms of ME/CFS and was associated with the regulation of dopaminergic and serotonergic pathways and TGF-β expression in the brain, as well as anti-inflammatory and anti-oxidant mechanisms in internal organs.     

Dose-Dependent Effects of Resveratrol on Cisplatin-Induced Hearing Loss

Previous preclinical studies have demonstrated the otoprotective effects of resveratrol (RV) at low doses. This study aimed to investigate the dose-dependent effects of RV in rats with cisplatin (CXP)-induced hearing loss. Sprague-Dawley rats (8-weeks old) were divided into six treatment groups (n = 12/group) and treated as follows: control, 0.5 mg/kg RV, 50 mg/kg RV, CXP, 0.5 mg/kg RV + CXP), and 50 mg/kg RV + CXP groups. CXP (3 mg/kg) was intraperitoneally injected for 5 days. RV (0.5 or 50 mg/kg) was intraperitoneally injected for 10 days from the first day of CXP administration. Auditory brainstem response (ABR) thresholds were measured before and within 3 days at the end of the drug administration. Cochlear tissues were harvested, and the outer hair cells were examined using cochlear whole mounts. The mRNA expression of NFκB, IL6, IL1β, and CYP1A1, and protein levels of aryl hydrocarbon receptor (AhR) and cytosolic and nuclear receptor for advanced glycation endproducts (RAGE) were evaluated. The ABR threshold increased in the 50 mg/kg RV and CXP groups at 4, 8, 16, and 32 kHz. The 0.5 mg/kg RV + CXP group demonstrated decreased hearing thresholds at 4 and 32 kHz compared to the CXP group. Cochlear whole-mount analysis revealed loss of outer hair cells in the 50 mg/kg RV and CXP groups and partial prevention of these cells in the 0.5 mg/kg RV + CXP group. The mRNA expressions of NFκB, IL6, and IL1β were increased in the 50 mg/kg RV and CXP groups compared to the control group. In contrast, these levels were decreased in the 0.5 mg/kg RV + CXP group compared to the CXP group. The mRNA expression of CYP1A1 was increased in the CXP group, while it was decreased in the 0.5 mg/kg RV + CXP group compared to the control group. The protein levels of AhR and cytosolic RAGE decreased in the 0.5 mg/kg RV group. Low-dose RV had partial otoprotective effects on CXP ototoxicity. The otoprotective effects of RV may be mediated through anti-oxidative (CYP1A1 and RAGE) and anti-inflammatory (NFκB, IL6, and IL1β) responses. High-dose RV exerted an inflammatory response and did not ameliorate CXP-induced ototoxicity.     

3′5-Dimaleamylbenzoic Acid Attenuates Bleomycin-Induced Pulmonary Fibrosis in Mice

Idiopathic pulmonary fibrosis (IPF) is a chronic lung disease characterized by parenchymal scarring, leading progressively to alveolar architecture distortion, respiratory failure, and eventually death. Currently, there is no effective treatment for IPF. Previously, 3′5-dimaleamylbenzoic acid (3′5-DMBA), a maleimide, demonstrated pro-apoptotic, anti-inflammatory, and anti-cancer properties; however, its potential therapeutic effects on IPF have not been addressed. Bleomycin (BLM) 100 U/kg was administered to CD1 mice through an osmotic minipump. After fourteen days of BLM administration, 3′5-DMBA (6 mg/kg or 10 mg/kg) and its vehicle carboxymethylcellulose (CMC) were administered intragastrically every two days until day 26. On day 28, all mice were euthanized. The 3′5-DMBA effect was assessed by histological and immunohistochemical staining, as well as by RT-qPCR. The redox status on lung tissue was evaluated by determining the glutathione content and the GSH/GSSG ratio. 3′5-DMBA treatment re-established typical lung histological features and decreased the expression of BLM-induced fibrotic markers: collagen, α-SMA, and TGF-β1. Furthermore, 3′5-DMBA significantly reduced the expression of genes involved in fibrogenesis. In addition, it decreased reduced glutathione and increased oxidized glutathione content without promoting oxidative damage to lipids, as evidenced by the decrease in the lipid peroxidation marker 4-HNE. Therefore, 3′5-DMBA may be a promising candidate for IPF treatment.     

Systemic Dietary Hesperidin Modulation of Osteoclastogenesis,Bone Homeostasis and Periodontal Disease in Mice

This study aimed to evaluate the effects of hesperidin (HE) on in vitro osteoclastogenesis and dietary supplementation on mouse periodontal disease and femoral bone phenotype. RAW 264.7 cells were stimulated with RANKL in the presence or absence of HE (1, 100 or 500 µM) for 5 days, and evaluated by TRAP, TUNEL and Western Blot (WB) analyses. In vivo, C57BL/6 mice were given HE via oral gavage (125, 250 and 500 mg/kg) for 4 weeks. A sterile silk ligature was placed between the first and second right maxillary molars for 10 days and microcomputed tomography (μCT), histopathological and immunohistochemical evaluation were performed. Femoral bones subjected or not to dietary HE (500 mg/kg) for 6 and 12 weeks were evaluated using μCT. In vitro, HE 500 µM reduced formation of RANKL-stimulated TRAP-positive(+) multinucleated cells (500 µM) as well as c-Fos and NFATc1 protein expression (p < 0.05), markers of osteoclasts. In vivo, dietary HE 500 mg/kg increased the alveolar bone resorption in ligated teeth (p < 0.05) and resulted in a significant increase in TRAP+ cells (p < 0.05). Gingival inflammatory infiltrate was greater in the HE 500 mg/kg group even in the absence of ligature. In femurs, HE 500 mg/kg protected trabecular and cortical bone mass at 6 weeks of treatment. In conclusion, HE impaired in vitro osteoclastogenesis, but on the contrary, oral administration of a high concentration of dietary HE increased osteoclast numbers and promoted inflammation-induced alveolar bone loss. However, HE at 500 mg/kg can promote a bone-sparing effect on skeletal bone under physiological conditions.     

Foretinib Is Effective against Triple-Negative Breast Cancer Cells MDA-MB-231 In Vitro and In Vivo by Down-Regulating p-MET/HGF Signaling

This study investigated the antitumor effects of foretinib on triple-negative breast cancer cells MDA-MB-231 xenograft tumors in vivo underlying phosphorylated mesenchymal to epithelial transition (p-MET)/ hepatocyte growth factor (HGF)-related mechanism, as well as its pharmacokinetic characteristics. The MDA-MB-231 human breast cancer cell line was used for in vitro experiments, and the tumor xenograft model was established for in vivo experiments. MDA-MB-231 xenograft mice received oral foretinib (15 or 50 mg/kg/day) or vehicle for 18 days. The xenograft tumors were collected. Protein expressions of p-MET and HGF were examined with Western blotting and immunohistochemical staining. The mRNA expression of MET was examined with real-time PCR. Blood samples were collected from the mice treated with foretinib under different doses of 2, 10, and 50 mg/kg, and the pharmacokinetic profiles of foretinib were evaluated. We found that foretinib treatment caused a significant inhibition in tumor growth in a dose-dependent manner, whereas the continuous administration did not result in weight loss in treated nude mice. In both MDA-MB-231 cells and xenograft tumors, foretinib suppressed the expression of p-MET and HGF. These findings reveal that the decrease of p-MET and HGF may play an important role in the anti-breast cancer properties of foretinib.     

Escitalopram Targets Oxidative Stress,Caspase-3, BDNF and MeCP2 in the Hippocampus and Frontal Cortex of a Rat Model of Depression Induced by Chronic Unpredictable Mild Stress

In recent years, escitalopram (ESC) has been suggested to have different mechanisms of action beyond its well known selective serotonin reuptake inhibition. The aim of this study is to investigate the effects of escitalopram on oxidative stress, apoptosis, brain-derived neurotrophic factor (BDNF), Methyl-CpG-binding protein 2 (MeCP2), and oligodendrocytes number in the brain of chronic unpredictable mild stress-induced depressed rats. The animals were randomised in four groups (8 in each group): control, stress, stress + ESC 5 and stress + ESC 5/10. ESC was administered for 42 days in a fixed dose (5 mg/kg b.w.) or in an up-titration regimen (21 days ESC 5 mg/kg b.w. then 21 days ESC 10 mg/kg b.w.). Sucrose preference test (SPT) and elevated plus maze (EPM) were also performed. ESC improved the percentage of sucrose preference, locomotion and anxiety. ESC5/10 reduced the oxidative damage in the hippocampus and improved the antioxidant defence in the hippocampus and frontal lobe. ESC5/10 lowered caspase 3 activity in the hippocampus. Escitalopram had a modulatory effect on BDNF and the number of oligodendrocytes in the hippocampus and frontal lobe and also improved the MeCP2 expressions. The results confirm the multiple pathways implicated in the pathogenesis of depression and suggest that escitalopram exerts an antidepressant effect via different intricate mechanisms.     

Protective Effects of Epigallocatechin Gallate for Male Sexual Dysfunction in Streptozotocin-Induced Diabetic Rats

Sexual dysfunction is a common problem for men with diabetes. Epigallocatechin gallate (EGCG) is known to ameliorate erectile function in aging rats. However, there has not yet been a report to evaluate its effects on diabetic male rat sexual behavior in the literature. In this study, we investigated the effects of EGCG on male sexual behavior in diabetic rats. Diabetic rats were induced by a single intraperitoneal injection of 65 mg/kg of streptozotocin. After streptozotocin injection for one week, animals were then orally treated with 40 mg/kg of EGCG or vehicle. Copulatory behavior and fasting blood glucose levels were recorded before treatment, as well as 7 and 14 days after treatment. Serum LH, testosterone, and PDE5a levels were measured by EIA assay after the last behavioral test. Data showed that diabetic rats who had diminished sexual functions demonstrated significantly increased latencies in mount, intromission, and ejaculation, as well as significant decreases in frequencies of intromission and ejaculation, compared to non-diabetic controls, indicating sexual function recovery. Lower blood glucose levels were also found in diabetic rats after EGCG treatment. Additionally, the lower LH and higher PDE5a levels in diabetic rats than controls were also noted. The findings declared that EGCG had a protective effect on male sexual behavior in diabetic rats.     

HPLC法测定建筑涂料及乳液中的苯甲醛

建立了建筑涂料及乳液中苯甲醛的液相色谱检测方法。样品经甲醇提取,用50%甲醇饱和氯化钙溶液(V/V)沉淀聚合物,离心后将上层清液过滤进样。采用C18色谱柱进行分离,甲醇-水为流动相洗脱,二极管阵列检测器进行目标物检测,外标法定量。结果表明:在0~10μg/mL范围内,质量浓度和峰面积呈现良好的线性关系(R=0.9998)。方法检出限0.44 mg/kg,定量限1.47 mg/kg,当添加水平在25 mg/kg、50 mg/kg、100 mg/kg时,加标回收率在87.60%~91.10%,相对标准偏差RSD(n=6)均小于1.5%,该方法可用于建筑涂料及乳液中的苯甲醛的快速检测。