입자 크기는 Bettersizer 2600을 사용하여 습식 또는 건식 방법으로 측정할 수 있습니다. 이 다목적의 강력한 분석기는 모듈식 설계와 특허 기술을 통해 다양한 응용 분야를 다룰 수 있습니다. 사용자는 0.02 μm에서 2600 μm의 물질을 쉽고 정확하게 특성화할 수 있습니다.
특징 및 장점
- ● 기술: 기술: 레이저 회절
- ● 입자 크기 범위: 습식 분산: 0.02~2,600μm 건식 분산: 0.1~2,600μm
- ● 습식 및 건식 입자 사이징 방법은 다양한 분산 입자 시스템에 적합합니다.
- ● 푸리에 및 역 푸리에 광학 시스템을 모두 활용하는 새로운 특허 기술로 가장 넓은 범위를 포괄하는 크고 작은 입자를 정밀하게 측정합니다.
- ● 0.016° - 165°의 각도 범위를 커버하는 92개의 검출기를 갖춘 광학 벤치(습식 및/또는 건식 분산 옵션)
- ● 소량의 시료, 특히 공급이 부족한 제약 또는 귀중한 시료를 위한 소량 건식 분산 모듈
- ● 분산 모듈 간 쉽고 빠른 전환
- ● 새로운 자료에 대한 표준 운영 절차를 쉽게 구현, 생성 및 사용할 수 있습니다.
- ● 굴절률 측정을 통해 보다 정확한 매개변수를 제공하여 결과를 계산할 수 있습니다.
- ● 쉽게 배울 수 있는 사용자 친화적인 소프트웨어
동영상
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개요
1. 푸리에 및 역 푸리에 광학 시스템
베터사이저 2600은 푸리에 및 역 푸리에 설계의 조합이 뛰어납니다. 이 스마트한 설계는 한편으로는 0.016°에서 165°에 이르는 매우 넓은 각도 범위에서 산란광을 감지할 수 있습니다. 반면 역 푸리에 설계와 달리 입자가 한 평면에 놓일 필요가 없으므로 작은 입자와 큰 입자를 동시에 정확하게 측정할 수 있습니다.
푸리에 설계와 역 푸리에 설계 조합의 특징
- 구형 검출기 어레이: 전방, 측면 및 후방 감지기가 총 92개로 구성되어 있습니다;
- 초대형 푸리에 렌즈;
- 작은 설치 공간: 컴팩트한 디자인으로 공간 절약.
2. 직관적이고 강력한 소프트웨어
- 직관적인 사용자 인터페이스와 정돈된 작동
- 최적의 측정 조건을 결정하기 위한 실시간 PSD 곡선
- 완전 자동 측정 루틴
- 자동 청소 루틴
- 자동 데이터 백업 및 고도로 사용자 정의 가능한 보고서
- 프라운호퍼 및 미에 평가 모델에 따른 직접 변환
- 한 번의 클릭으로 습식 및 건식 분산 모듈 간 전환
3. 습식 분산
BT-802는 물을 매질로 하는 입자 크기 측정용으로 설계되었습니다.
| 에탄올 | 메탄올 | 이소프로판올 | 에테르 |
| 톨루엔 | 크실렌 | 디클로로메탄 | 옥탄 |
| 에틸 아세테이트 | 아세톤 | 메틸 올레에이트 | NMP 용매 |
BT-80N은 스테인리스 스틸 쉘로 구성되어 있습니다. 원심 펌프, 초음파 분산기, PTFE 파이프라인, 소결 석영 샘플 셀, 제어 회로 등의 구성품으로 이루어져 있습니다.
BT-804는 매질이 용매 또는 물인 귀중하거나 소량의 시료 측정을 위해 설계되었습니다. 이 모듈은 ABS 쉘, 교반 모터, 큐벳(8ml), 교반기 등으로 구성됩니다.
- 시료 질량이 0.005 - 0.1g인 경우 최대 부피는 8mL입니다.
- 물 또는 유기상에 분산된 시료에 적합합니다.
4. 건식 분산
BT-902는 건조 분말 측정에 적합합니다. 사용되는 가스는 압축 공기, 질소 또는 기타 희귀 가스일 수 있습니다.
BT-902는 전자기 진동 피더, 벤츄리 파이프, 가스 회로, 전기 회로, 압력 센서 등으로 구성됩니다.
5. 응용 분야
Citations
- Bettersizer 2600
Functional redundancy as an indicator for evaluating functional diversity of macrobenthos under the mussel raft farm near Gouqi Island
DOI: 10.1016/j.aquaculture.2023.740024 Read Article
Zhejiang Ocean University | 2024Biological traits analysis (BTA) helps to evaluate the effects of different environmental variables on the traits-based functional composition of macrobenthos. However, research on functional traits of macrobenthos under mussel farming is limited. We investigated the spatial and temporal response of the benthic system in terms of taxonomic and functional diversity to environmental variables of farming and natural stressors resulting from suspended mussel farming near Gouqi Island of eastern China Sea. The functional traits of macrobenthic assemblages under mussel farming were characterized by “medium adult body size”, “vermiform body form”, “high flexibility”, “infauna”, “semi-motile”, “gonochoristic”, “surface deposit-feeders”, “carnivores”, “semi-motile burrowers”, and “tube-dwellers”. Functional redundancy was stable in response to mussel farming stresses among seasons, whereas species diversity showed efficient to evaluate natural variables. Functional diversity was significantly affected by farming stressors rather than natural variables, Further analysis using multivariate methods together with continuous monitoring were highlighted to evaluate the impacts of mussel farming. Our results reinforce the importance of macrobenthic species and functional traits analysis to evaluate human stresses driven impacts in offshore ecosystems. By analysing the environmental variables with different sources, independently, we concluded the main effects of human pressures on macrobenthic community. Such distinction could be particularly effective to isolate variable environmental descriptors and evaluate their effects on functional diversity, making the current approach promising for the evaluation of ecological effects of anthropogenic stressors in aquaculture areas. - Bettersizer 2600
Degradation characteristics and utilization strategies of a covalent bonded resin-based solid amine during capturing CO2 from flue gas
DOI: 10.1016/j.seppur.2023.125621 Read ArticleChina University of Petroleum | 2024In this study, various types of degradation as well as attrition which are possibly encountered in a circulating fluidized bed temperature swing adsorption (CFB-TSA) process, were conducted experimentally to evaluate the stability of a resin-based solid amine sorbent. Other characterizations methods, such as elemental analysis (EA), Fourier transform infrared spectroscopy (FTIR) etc. were applied to further reveal the degradation mechanisms. The results showed that thermal degradation occurs from 140–160 °C due to the decomposition of amine group. The CO2-induced degradation occurs from a higher temperature of 160–180 °C accompanied by the production of urea. Hydrothermal stability is good below 130 °C, but the ionic impurities in steam crystalized on particle surface can accelerate the degradation. Oxidative degradation is the most harmful, which starts at a lower temperature of 70–80 °C with the formation of aldehyde. The existence of H2O in atmosphere can alleviate the oxidative and CO2-induced degradations. The employed sorbent has a very low attrition index of 0.05, which is 1–2 orders lower than typical commercial fluidized bed catalysts. Based on the results of stability evaluation, some design suggestions for proper utilization of this sorbent or other similar resin-based sorbents have been provided in an industrial CFB-TSA process.
- Bettersizer 2600
De-branching of starch molecules enhanced the complexation with chitosan and its potential utilization for delivering hydrophobic compounds
DOI: 10.1016/j.foodhyd.2023.109498 Read ArticleShihezi University | 2024The current study aimed to prepare the complexes between debranched-waxy corn starch and chitosan polymers (DBS-CS), and then investigated their corresponding structural characteristics, rheological property and potent application in Pickering emulsion. The results indicated that the existence of chitosan significantly inhibited starch short-range molecular rearrangement for all DBS-CS samples, which was manipulated by both debranching treatment and chitosan content. Interestingly, this is the first study to reveal that the outstanding peak at 1.8 ppm in 1H NMR spectrum for sample DBS-CS was gradually shifted towards a lower-field region following an increased chitosan content. Moreover, the debranching treatment shifted the crystallinity pattern from A-type to B-type and the relative crystallinity of DBS-CS decreased gradually with the increased content of CS. All samples had a pseudoplastic fluid and shear-thinning behavior with an enhanced shear resistance following the complexation. The DBS-CS was applied in a Pickering emulsion for showing a greater emulsifying stability and a lower gel strength than native NS-CS prepared emulsion. Importantly, the encapsulation ability of curcumin in the DBS-CS emulsion was significantly improved, followed by an increase of 15.45% for its corresponding bioavailability compared to the control. Therefore, this study might highlight a potential carrier for delivering the bioactive substances in a green pattern. - Bettersizer 2600
Heat-induced aggregation behavior of wheat gluten after adding citrus pectin with different esterification degree
DOI: 10.1016/j.foodhyd.2023.109420 Read ArticleGansu Agricultural University | 2024Wheat gluten aggregation during heat treatment is beneficial to the final quality of gluten-based products. Exogenous pectin can affect gluten aggregation. However, the effect of pectin with different degrees of esterification on the heat-induced aggregation behavior of gluten and its possible mechanism are still unclear. Thus, the heat-induced aggregation behavior of gluten after adding pectin with different esterification degree was studied in this study. When the temperature was raised from 25 °C to 95 °C, pectin affected gluten aggregation and was related to the degree of esterification. Specifically, the results of rheological properties and particle size indicated that low-ester pectin improved the viscoelasticity of gluten and promoted gluten aggregation. Thermal properties revealed that enthalpy of gluten added with low-ester pectin (37%) increased from 92.96 J/g to 95.40 J/g during heating process. Structurally, the fluorescence intensity and surface hydrophobicity of gluten added with low-ester pectin (37%) were lower than those added with high-ester pectin (73%). In addition, low-ester pectin (37%) significantly increased the disulfide bond content (from 15.31 μmol/g to 18.06 μmol/g) and maintained β-sheet content of gluten compared with gluten alone at 95 °C, indicating that low-ester pectin was more likely to induce gluten aggregation. However, scanning electron microscope showed that the gluten added with low-ester pectin (46%) exhibited a denser network structure at 95 °C than that added with low-ester pectin (37%). These results will provide a theoretical base for the regulation of gluten aggregation and the quality of gluten-based products by pectin with different esterification degree.
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